单项选择题
They have done（）work these days.
A.too much
B.much too
C.too many
D.many too
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They all go outing on such a warm spring day（）Mark. He is busy with his lessons now.
A.beside
B.besides
C.except for
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They（）each other for more than twenty years.
A.don't see
B.didn't see
C.haven't seen
D.hadn't seen -
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These desks and chairs（）to the children in the mountain villages next week.
A.are sent
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C.have sent
D.will be sent
