According to the theory of photo-periodism, ______.A.birds should migrate in the middle of
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Which of the following is true?A.The international service in August would be as much as in July.B.The flow of international passengers will be more than that in July.C.The airport will provide less service than in July.D.The flow of international passengers will be more than that in usual time.
He kept a ______ hold on her hand as he helped her over the fence.A.solid B.stiff
By the end of this month we surely ______ a satisfactory solution to the problem.A.have found B.will have foundC.will be finding D.are finding
Susan: I'm going to the cinema this evening.Gordon: ______ ?Susan: It's a Western: "Cowboy