3. 根据句子的意思选择正确的答案。
1) try __________ you may, you will never succeed.
a. though b. as though
c. as d. as if
2) __________ more time to think about it.
a. if only i had b. only if i had
c. if i only had d. only if had i
3) __________ , the basketball match will be resumed on thursday.
a. weather permits b. weather permitting
c. weather is permitting d. weather permitted
4) it was last night __________ mary suffered a terrible panic attack.
a. that b. which
c. on which d. when
5) we heard the news __________ some american businessmen will visit our firm.
a. what b. that
c. which d. when
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