Jim talked for about half an hour yesterday. Never ________ him talk so much.

A. I heard

B. did I hear

C. I had heard

D. had I heard

Mr. Smith flew to New York this morning, his assistant ________ him there this Saturday.

A. joining

B. will join

C. to join

D. is going to join

Last term our math teacher set so difficult an examination problem ________ none of us worked out.

A. that

B. as

C. so that

D. which

Carol said the work would be done by October, ________ personally I doubt very much.

A. it

B. that

C. when

D. which

The reason why I plan to give up the job is ________.

A. because the company is too far away from my home

B. that the company is too far away from my home

C. the company was too far away from my home

D. on account of the company is too far away from my home

I regret ________ the work unfinished; I ________ everything ahead carefully.

A. having been left; should plan

B. having left; should have planned

C. to leave; should have planned

D. to have left; should plan

The whole truth came out at last ________ he was a wolf in sheep's clothing.

A. that

B. which

C. when

D. where

—What were you up to when she dropped in?

—I ________ for a while and ________ some reading.

A. played; did

B. was playing; was going to do

C. had played; did

D. had played; was going to do

The term “force”, ________ used in mechanics (力学), refers to what is known in everyday language as a push or a pull.

A. as

B. once

C. which

D. that

—What are going to do next?

—To write a science story about outer space ________ by Science and Technology Press.

A. published

B. being published

C. to be published

D. publishing