题目内容

Itwasfiveyearsago()sheresignedfromthecompany,andwehaveneverseenhersincethen.

A. where
B. that
C. before

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()theindustryinthisareadevelopingsorapidly,airpollutionbecameaseriousproblem.

A. With
B. For
C. Since

Theworkerscannothelpbut()theregulationsofthecompanyastheyneedmoney.

A. toobey
B. obey
C. obeying

Itisreportedthatanotherundergroundrailway()thepublicinthreemonths’time.

A. isopento
B. isopenedto
C. willbeopenedto

The()ofanadjectiveistodescribeoraddtothemeaningofanoun.

A. lable
B. function
C. substance

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