The authorities should have been____to the possibility of invasion .
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