急~~帮忙解释一下这几道题
1.When_____agameoffootball?
A.hadyoulast
B.didyoulasthave
C.lasthadyou
D.didyouhavelast
答案是B为什么呢?
2.Policemen__verybusy
A.nearlyarealwaysB.alwaysarenearlyC.alwaysnearlyare
D.arenearlyalways
答案肯定是D我不知该怎么样解释nearly要在always前面
3.Itseemsimportantthatthesystemofcompetition__variousfield.
应该填beintroducedinto怎样解释呢?
4.Hewasabouttositupwhenhefeltsomethingmovenearhisfeet.
这里面的move为什么要改成moving.
谢谢大家了
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