21． More than one high official_____by the police since the mayor war shot dead.
题型：不详难度：来源：
21． More than one high official_____by the police since the mayor war shot dead.
| A．has been questioned | B．have been questioned |
| C．was questioned | D．were questioned |
答案
解析
举一反三
22．Half of the food in the bag_____bad．You’d better throw it away．
| A．has | B．have | C．are | D．Is |
12. Half of the students will have sports, and the rest _____ to be here in the classroom studying.
| A．is | B．was | C．were | D．are |
--- Only at home. No one _______ me but you.
| A．is seeing | B．had seen | C．sees | D．saw |
| A．are | B．can | C．have | D．is |
33. It is necessary that whoever ______ recently visited the country ______ this kind of test.
A．h as; pass | B．has; passed | C．have; pass | D．has; passes |
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