题目6:My best friend and advisor ______ changed _____ mind again.A.have; their B.has; his.C. are; their D. was; his题目7:We've already sent out the invitation cards, but we don't know how many

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题目6:Mybestfriendandadvisor______changed_____mindagain.A.have;theirB.has;his.C.are;theirD.was;his题目7:

题目6:My best friend and advisor ______ changed _____ mind again.A.have; their B.has; his.C. are; their D. was; his题目7:We've already sent out the invitation cards, but we don't know how many
题目6:My best friend and advisor ______ changed _____ mind again.
A.have; their B.has; his.
C. are; their D. was; his
题目7:We've already sent out the invitation cards, but we don't know how many people_________.
A. come B. are coming
C. came D. have come

题目6:My best friend and advisor ______ changed _____ mind again.A.have; their B.has; his.C. are; their D. was; his题目7:We've already sent out the invitation cards, but we don't know how many
C;B
题6应该是被动语态
题7应该是“现在进行时”表“将来”