问题

If my lawyer ______ here last Friday, he _____ me from telling the truth.
A:had been; would have prevented
B:had been; would prevent
C:were; would prevent
D:were; would have prevented
B:had been; would prevent
C:were; would prevent
D:were; would have prevented
正确答案是:
同类题型
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Only when she reached her office____ she had left her key at home.