It is generally considered unwise to give a child ________ he or she wants．

however

whatever

whichever

whenever

－I'm afraid I can't memorize so many new words in 2 days．

－________．

Don't be afraid

You are clever

Not at all

Take your time

Failure is never pleasurable, but it can make a positive contribution to your life ________ you learn to use it．

since

once

until

unless

He suggested the problem which is referred ________ at the meeting．

to be discussed

to being discussed

to discuss

to discussing

Maybe all people realize that ________ is to be next Mayor will face masses of problems．

who

whoever

whomever

no matter who

－Is Alice a teacher?

－No, but she ________ in a middle school for 10 years．

would teach

has taught

is teaching

taught

The news is made ________ to everyone throughout the world that our Chinese athletes have won 5 gold medals in the Winter Olympics．

be known

to be known

to know

known

In no condition ________　________ to go against nature．

we are allowed

we can allow

are we allowed

can we allow

________ she is not so healthy ________ she used to be?

How it is that; as

Why is it that; as

Is it why; that

How is it that; what

The following are some tips to help your business ________ and shorten the time it takes you to start earning a profit．

take over

take up

take off

take place