I really don’t know______Tom lost his wallet.A.when was it that B that it was whenC. where it was that D. it was where that
You had one of your teeth pulled out yesterday, ______?
__ You keep on coughing.What’s the matter? __ Oh, I’ve got a cold.Nothing serious, ______?
If he had started at nine o’clock, he _____ have been in London by eleven o’clock.
Generous public funding of basic science would ______ a good many benefits for the country’s health, wealth and security.
__ What’s that high building ? __ ______ we borrow books or do reading.