The authorities should have been____to the possibility of invasion .
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举一反三
- Local housing authorities have been _____________ by the housing crisis to make offers of sub-standard accommodation. (compelling)
- “I should have been a King if I was back to the old days.”一句中，should have been 应该重读。
- I wish I _______yesterday’s party. A: had not been to B: have not gone to C: should have gone to D: should have been to
- He did not attend the meeting yesterday. He______ill. A: must be B: must have been C: should be D: should have been
- He fifty when I met him the first time. A: must be B: must have been C: should be D: should have been
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I didn' t hear the sound, so I ______ asleep. A: must be B: must have been C: should be D: should have been
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It ____ last week. A: should be done B: should have been done
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I ___ him the answer ___ possible, but I was so busy then. A: could tell, if it had been B: must have told, were it C: should have told, had it been D: should have told, should it be
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Somebody ______ here only this morning. A: must be B: can be C: must have been D: should have been
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David, you are so lazy. This job( )hours before. A: should finish B: could be finished C: should have been finished D: must have been finished