I know a little about Thailand, as I there three years ago.A．have beenB．have

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I know a little about Thailand, as I there three years ago.

A．have been

B．have gone

C．will go

D．went

答案

解析

句意：我对泰国有一点了解，因为我三年前去过那里。结合语境可知下文从句中描述的是过去某时发生的动作，故用一般过去时态，选D。

举一反三

- Is James at home?
-- No, he Ya"an to be a volunteer.
A. has gone to B. has been to C. is going to

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--Mum, it"s late. Why are you still here?
--Dad hasn"t come back yet. I for him.
A. am waiting B. was waiting C. waited

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Who designed this game?
It by Tom in 1999.

A．is designed

B．designs

C．was designed

D．designed

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He for ten years.

A．has been married

B．married

C．got married

D．has married

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If farmers trees and forests, giant pandas nowhere to live.

A．cut down; have	B．will cut down; will have
C．will cut don; have	D．cut down; will have

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