— Excuse me, is this seat taken?
—_____. That man got his books and left a few minutes ago.
A. I’m afraid so B. I don’t know
C. I don’t think so D. I hope not
I didn’t have _____ to say, so I said _____.
A. something, anything B. anything, nothing
C. anything, something D. nothing, something
— How_______ the medicine tastes!
—Yes. But the medicine will really work soon after you take it.
A. nice B. sweet
C. delicious D. terrible
—Has your friend completed his design?
—Not yet. He _______ on it last night.
A. worked B. has worked
C. is working D. was working
—Did you hear my answer to this question , Sam?
——Yes, Sir. Bob it to me after you.
A. talked B. said
C. repeated D. spoke
—Do you think ________will be robots in the school in 20 years?
—No,________.
A. there； there won’t B. they； there will
C. there； they won’t D. they； there wouldn’t
