Is the money that you have been offered sufficient to ________ this term's education fee?

A．afford

B．cover

C．offer

D．charge

What do your friends suggest ________ when you meet with a tough issue?

A．do

B．doing

C．to do

D．did

Though ________ to see us, he gave us a warm welcome．

A．surprise

B．to be surprised

C．surprising

D．surprised

People who drink and drive are ________ danger both to themselves and to ________ others．

A．the; 不填

B．a; 不填

C．不填; the

D．the; the

________ your blog, I would have written back two days ago．

A．If I read

B．Should I read

C．Had I read

D．If I could have read

I do sometimes have cases ________ I don't know how to solve the physics problems．

A．when

B．where

C．that

D．because

So difficult ________ it to live in an English-speaking country that I determined to learn it well．

A．I have felt

B．have I felt

C．I did feel

D．did I feel

Cheer up, Maria! You can also enjoy ________ you have been dreaming of, if you don't lose heart．

A．as a convenient life as

B．as convenient a life as

C．as a life convenient as

D．convenient as a life as

I suggested that they ________ themselves to their new conditions．

A．adapt

B．put

C．matched

D．suited

The rule says that the last ________ the classroom should remember ________ the lights．

A．to leave; to turn off

B．leaving; to turn off

C．leaving; turning off

D．to leave; turning off