When and where this took place_________still unknown.
. My friend is a heavy smoker. After he left my house last time, all my house _______.
We hadn’t seen each other for years and he had changed a great deal, so I didn’t _______ him at first.
— Must I take a taxi? —No, you______. It is only a six minutes’ walk. A. don’t have to B. must C can’t D ought to
It is said that going on______ diet can help you lose_____ weight, but there are often unwanted side effects.A. the; the B. a; the C. a; / D a; a
—I am sorry. I broke your cup. — _______ . I have another one.