( )(2)I work _____ the Bank of Britain .A. in B. on C. at
An _____ invented this bicycle. A. Chinese B. American C. English
This old woman _____ have food. A.did B. didn’tC. don’t
When did they _____ ? A. comeB. cameC. comes
What _____ to you? A. happenB. matterC. happened
What did you _____ ? A. sawB. seeC. bought