—________ come with us to visit Professor Smith in hospital now?

—He could if he had the time.

1. A.
   Is he going to
2. B.
   Could he
3. C.
   Would he like to
4. D.
   May he have

—________ come with us to visit Professor Smith in hospital now?

—He could if he had the time.

[　　]

---Come on, please give me some ideas about the project.
--- Sorry. With so much work ______my mind, I almost break down.

1. A.
   filled
2. B.
   filling
3. C.
   to fill
4. D.
   being filled

Peter ________ come with us tonight, but he isn't very sure．

1. A.
   must
2. B.
   may
3. C.
   can
4. D.
   will

—Come on, please give me some ideas about the project.

—Sorry. With so much work           my mind, I almost break down.

A.filled                B.filling               C.to fill               D.being filled