6. —Did Alan enjoy seeing his old friends yesterday?
—Yes， he did. He______ his old friends for a long time.
A. didn´t see
B. wouldn´t see
C. hasn´t seen
D. hadn´t seen
7. — Jack bought a new mobile phone the other day.
— ________? That’s his third one in just one month.
A. Had he
B. Did he
C. Does he
D. Has he
8. Professor James will give us a lecture on the Western culture， but when and where ____ yet.
A. hasn´t been decided
B. haven´t decided
C. isn´t being decided
D. aren´t decided
9. The play had already been on for quite some time when we ____ at the New Theatre.
A. have arrived
B. arrived
C. had arrived
D. arrive
10. If Newton lived today， he would be surprise by what ____ in science and technology.
A. had discovered
B. had been discovered
C. has discovered
D. has been discovered
参考答案：1.B 2.A 3.B 4.B 5.D