If anyone wants to say something in class, you ________ put up your hands first.
A. must B. may C. should D. Can
-- __________ you ________ your book to the library? -- Yes. I returned it yesterday.
A. Did, return B. Have, returned
C. Will, return D. Do, return
The missing boys were last seen ______ near the river.
A.to play B.play C.to be playing D.playing
I’m going to look for another job ________ the company offers me more money.
A. after B. unless C. When D. For
-- _______ do you write to your parents? -- Once a month.
A. How long B. How soon C. How often D. How far
.– When shall we meet again next week?-- _______ day is possible. It’s no problem with me.
A. Either B. Neither C. Every D. Any
