单项选择题

Every means ______ been tried but without much result.

A. has
B. have
C. had
D. is
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单项选择题
-- I really appreciate ______ to holiday with you on this nice island. -- It’s my pleasure.
A. have time
B. having time
C. to have time
D. to having time
单项选择题
-- I’m sorry, but the boss isn’t here yet. Shall I have him call you when he comes back -- No, I’ll call him back. Ill call again in half an hour, do you think she______
A. had arrived
B. has arrive
C. will arrive
D. will have arrived
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