No government can justly claim authority ______ it is based on the will of the people．

A．unless            B．after             C．so that            D．while

Almost all of his time ______ experiments, he has no time to visit his parents.

A．devoted to do      B．devoting to doing    C．devoted to doing    D．is devoted to doing

It ______ to me that I should go to attend a meeting when I was about to go home．

A．occurred          B．struck            C．happened         D．reminded

Most disaster experts believe there is the potential ______ things could get a lot worse.

A．what             B． where           C．which            D．that

—How long do you think the terrible snow will_____ ?

—Sorry, I didn’t listen to the weather forecast.

A．keep out          B．keep on           C．keep up           D．keep away

_____, and I believe you will realize your dream.

A．Making a little bit more effort              B．Make a little bit more effort

C．To make a little bit more effort             D．If you make a little bit more effort

— Alice told me you called yesterday.

— Yes, I had a problem with Jane, ___________I thought you could help me with, but you were not in.

A．who             B．whom            C．that              D．which

---Why do you look so upset?

---There are so many troublesome problems _____.

A．remaining to be settled                   B．remained settled

C．remaining to settle                      D．remained to be settled

As high school students, it’s very important to keep ourselves ______ of what’s happening home and abroad every day.

A．to inform          B．informing          C．informed          D．be informed

–I find Chinese people are helpful when traveling around China.

–You’re right. I like ______ when people are friendly and helpful.

A．that              B．it                C．one              D．them