We are having a （) technical problem with one of our engines.A.lightB.slightC.brightD.

We can't know why he avoided ___ to us.

A、to speak

B、speech

C、having spoken

D、speaking

A.temporarily

B. constantly

C. continuously

D. occasionally

A、having

B、to have

C、have

D、had

A.will have

B.will be having

C.are having

D.will have had

A、to promote

B、having been promoted

C、having promoted

D、to be promoted

A、mustn't attend

B、cannot have attended

C、having improved

D、would have not attended

A)was happening

B)to happen

C)has happened

D)having happened

A.had

B.haves

C.have

D.are having

A.I’m sorry

B.Of course not

C.No, I can't

D.I’d love to, but I have an appointment

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