-Two hundred of the tourists were saved from danger in Taiwan, but the rest stil
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—Two hundred of the tourists were saved from danger in Taiwan, but the rest ______ sti
ll missing.
—If the travel agency ______ more safety measures, this accident could have been avoided. [ ]A. is; has taken
B. are; had taken
C. were; had taken
D. are; would take
试题答案
C