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A.people haveB.do people have

C.have peopleD.people who have

【題目】The development of industry has been_______ gradual process throughout _______ human existence, from stone tools to modern technology.
A.不填, the
B.the; a
C.a; 不填
D.a; a

【題目】— Is there anything else to discuss?
—_____________. I guess.
A.Not at all
B.No, that's all
C.Yes, I'm sure
D.Yes, of course

【題目】—You needn't lake an umbrella. It isn't going to rain.
—Well, I don't know. It do.
A.might
B.need
C.would
D.should

A.can youB.you canC.would youD.you would