Spring in East china usually _in about march.
A. sets
B. set
C. seting
D. seted
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But if things don't improve,her family will_.
A. break
B. broke
C. broken
D. breaking
A good student usually knows how to sum up knowledge.
A. 对
B. 错
Let go of my arm ,you are hurting me.
A. 对
B. 错
They will go_to build another laboratory building.
A. on
B. in
C. to
D. at