The train CRH380A, ________ trial operation on the Shanghai-Hangzhou high-speed railway, set a speed record of 416.6 kilometers per hour.

A. started　　　 B. to start　　　　　 　　　　　　 C. starting　　　　 D. being started

—Are you feeling tired?

—No,I’m ______ tired.In fact,I can walk two miles farther.

A.not a little　　　　　　　　　　　 B.not a bit

C.a bit　　　　　　　　　　　　　 D.a little

We invited her to dinner but she didn’t even bother to _______ .

　 A. turn in　 B. turn up　　 C. turn on　　 D. turn down

—Can you give me the right answer?

─Sorry I________ . Would you repeat the question?

　 A．hadn’t listen　 B.haven’t listened C．don’t listen

D.wasn’t listening

Scientists have made a ________（突破）in bioengineering recently.

The film ____ for ten minutes when we got to the cinema, so we didn't see the first part.

　　 A. had been on　　 B. had begun　

C. has begun　　　 D. had been begun

Now that there are only a few minutes left, we’d better talk about the plan in _____.

A. short 　 B. secret　　 C. all 　 D. general

There are ________ people outside the shop, waiting for it to open.

A. two scores　　　　 B. two scores of

C. scores　　　　　　 D. two score of

He was so 　　　　 thoughts that he didn’t see the tree on the road and ran into it.

　 A.buried in 　　　　　　　　　 B.careful with

　 C.busy with 　　　　　　　　　 D.serious about