题目内容

--Whendidthecomputercrash?Thismorning,whileI________thereadingmaterialsdownloadedfromsomewebsites.

A. havesorted
B. wassorting
C. amsorting
D. hadsorted

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Themanagerwasconcernedtohearthattwoofhistrustedworkers_______.

A. willleave
B. areleaving
C. haveleft
D. wereleaving

--Howdidtheaccidenthappen?Thegirl_______Wechat(微信)whilewalkingacrossthestreet.

A. reads
B. isreading
C. wasreading
D. read

MysisterwithmyparentsdumplingswhenIgothomeyesterdayevening.

A. aremaking
B. ismaking
C. wasmaking
D. weremaking

--CouldyoutellmewhereyoufoundMissGaojustnow?Gertainly.Intheprincipal'soffice.They_______happilyatthattime.

A. aretalking
B. havetalked
C. weretalking
D. talk