“Have you moved into the new flat? ” “Not yet. The rooms ________ (paint). ”
are being painted
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________(fail)severaltimes,theyneedsomeencouragement.
Wewerebusy________(get)thingsreadyforthetrialproductionwhenhephonedus.
He________methathedecidedtoleaveonMonday.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.