We get to know that it' s important ________ us ________ plant more trees .

1. A.
   to, for
2. B.
   for, for
3. C.
   for, to
4. D.
   to, to

We get to know that it' s important ________ us ________ plant more trees .

[　　]

We get to know that it' s important ________ us ________ plant more trees .

[　　]

To save yourself from embarrassment (尴尬)， it’s good to read a few books or research online about the culture and customs of the country you plan to visit.
Clothing: Wearing shorts in public is generally not acceptable in most parts of the world, including some European countries.
Greetings: Handshake is a usually accepted form of greeting, although in some countries, like Japan, a traditional bow(鞠躬) is preferred. Be careful how you talk with someone; don’t use first names unless you are invited to do something.
Language/Gestures: learn some polite expressions (hello-goodbye-thank you) and relax. English is pretty common worldwide, especially in tourist areas and you can always use body language to get your message across. However, some Americans gestures have different meanings in other countries. For example, in Bulgaria, shaking your head usually means  “yes”; shaking it “vertically” means “ no”.
Food/Drink: you may find yourself looking down at a local delicious snake soup in china, sheep’s eyes in Saudi Arabia… and wonder what to do; especially you are guests in someone’s home. Be brave, take small bites, and pretend it tastes like something you like. Remember that some Buddhists don’t eat beef, and Muslims don’t eat pork. If you are eating with Muslims, never touch food with left hand (the left hand is for bathroom use).
Conversations: if you know the history and culture of the country, you will be confident. The French are angry at the classic American question: “What do you do for a living?” and so on.
【小题1】You should learn about _______ of the country if you want to go to another country.

To err is human. To blame（责备） the other guy is even more human.
Common sense is not all that common.
Why tell the truth when you can come up with a good excuse?
These three popular misquotes（戏谑的引语）are meant to be jokes, and yet they tell us a lot about human nature. To err, or to make mistakes, is indeed a part of being human, but it seems that most people don’t want to accept the responsibility for the problem. Perhaps it is the natural thing to do. The original quote about human nature went like this: “To err is human, to forgive, divine（神圣的）.” This saying mirrors an ideal: People should be forgiving of others’ mistakes. Instead, we tend to do the opposite – find someone else to pass the blame on to. However, taking responsibility for something that went wrong is a mark of great maturity（成熟）.
Common sense is what we call clear thought. Having common sense means having a good general plan that will make things work well, and it also means staying with the plan. Common sense tells you that you take an umbrella out into a rainstorm, but you leave the umbrella home when you hear a weather forecast for sunshine. Common sense does not seem to be common for large companies, because there are so many things going on that one person cannot be in charge of everything. People say that in a large company, “the right hand does not know what the left hand is doing.”
And what is wrong with a society that thinks that making up a good excuse is like creating a work of art? One of the common problems with making excuses is that people, especially young people, get the idea that it’s okay not to be totally honest all the time. There is a corollary（直接推论）to that: if a good excuse is “good” even if it isn’t honest, then where is the place of the truth?
【小题1】Which of the following is NOT based on common sense?