_____you’ve grown up, you must stop this childish behavior.

A． Now that

B．After

C．Although

D．As soon as

Li Yang, the founder of Crazy English, says that he copies it down _______ he comes to a sentence.

A．unless

B．while

C．because

D．every, time

It was evening ______ they reached Haikou City.

A．that

B．until

C．since

D．before

       —Hi, David, I heard you had an accident this morning．
       —Yes．Luckily, I hit the brakes in time ______ I would have been injured badly．
      

A．and

B．but

C．or

D．so

______ you think you can or not, you must finish the project before Friday.

A．If

B．Unless

C．Though

D．Whether

       The world economy has improved _____ since the end of last year, but major problems and challenges are not fully solved.

A．somehow

B．somewhat

C．anyhow

D．meanwhile

This dictionary, a few pages __________ are missing, is of no use.

A．to which

B．in which

C．of which

D．among which

It has been many years since I was last in London, _______ I still remember something that happened during that visit.

A．and

B．for

C．but

D．as

Should the wallet, found in the street, be put into a pocket _______ turned over to the policeman?

A．and

B．or

C．then

D．but

She rubs her teeth with her finger _______ she wants to brush her teeth. This is done after every meal.

A．when

B．until

C．since

D．while