I don’t think Mary and Sue before, ? A. have met; haven’t they B. have met; have
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I don’t think Mary and Sue _____ before, ______?
A. have met; haven’t they B. have met; have they
C. have seen; do I D. have seen; don’t they
试题答案
B
解析:
主句是第一人称，而且谓语动词是think, find, believe,make等，反意疑问句要和宾语从句一致；而且还得注意否定的转移问题。