1.A：Where is the manager?
B:I don't know .He _____ in his office a few minutes ago.
A.is B.was C.has been D.had been
2.If something could happen,then we can say it is _____.
A.able B.possible C.OK.D.true
3.She no longer ___________(remember) how to make dumplings.
4.English ______________(not teach) at every primary school.
5.The tyre _____________(mend) while we were shopping.
6.____________ these bills _______(pay) last week?