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【单选题】
Which of the units listed is used to combust waste in the engine room?A.
Boiler
B.
Incinerator
C.
Generator
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反馈参考答案：
举一反三
【单选题】John _____Disneyland. He is still there. [ ]
A.
has been to
B.
has gone to
C.
went to
D.
goes to
【单选题】—May I speak to John? ---Sorry, he Japan. But he in two days.
A.
has been to; will come back
B.
has gone to; will come back
C.
has been in; would come back
D.
has gone to; come back
【单选题】--Where is John? --He ____ Beijing. He ____ come back until next week.
A.
has been to；will
B.
has gone to; won’t
C.
has been to; won’t
D.
has gone to; will
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