A.If you were tactful, you would satisfy other people.
B.You should have been tactful so that you didn't offend other people.
C.I wish you were tactful so that you don't offend other people.
D.You must have offended other people because you are not tactful.

A.wore
B.taking
C.test
D.national

A.In
B.capacity
C.high
D.uninterested

A.follow
B.develop
C.obey
D.begin

A.coped
B.surged
C.gripped
D.strove

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B.
C.
D.

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B.
C.
D.

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B.
C.
D.

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B.
C.
D.

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B.
C.
D.