Many of my mother’s friends（）Buddhism.

（）that a good student like him should have made such a big mistake.

A.It’s strangely
B.It’s surprised
C.It’s understood
D.It’s surprising

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（）by a crowd of people，he felt nervous，（）what to say.

A.Watching；didn’t know
B.Having watched；and not know
C.Having been watched；not known
D.Being watched；not knowing

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