---Where is our English teacher?
---She is in the classroom, _______ the exercises _______ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．having explained; to | D．explained; from |
. At first his plan seemed impossible to put into practice, but ___it turned out to be quite easy.
A. ever since B. so far C before long D. above all
"I ___asleep all afternoon, so I didn't hear the phone. "he ___to me.
| A．lied; lay | B．lay; lied | C．lay; lay | D．lied; lied |
The winner of the race is tall and thin; he ___be my friend, Mike, who is short and fat.
| A．might | B．mustn't | C．can't | D．should |
. He ______to help me work out the problem, but I’d prefer to depend on myself.
| A．managed | B．offered | C．suggested | D．refused |
Have you prepared for the sports meeting which ___soon?
| A．has taken place | B．will be taken place |
| C．is to take place | D．is to be taken place |