I find this Math problems very _____ _. I believe the students can work it out .
A. easily; easy B. easy; easily
C. easily; easily D. easy; easy
—I’m sorry, Mr Li. I ________ my exercise book at home.
—Oh, don’t forget ________ it here tomorrow, please.
A. left; to bring B. forgot; to bring
C. left; to take D. forgot; to take
—________ does she weigh? —Her ________ is 50kg．
A. How heavy; weigh B. How many; weight
C. How much; weight D. How much; weigh
We should encourage our students ________ hard instead of ________ too much time playing games.
A. work; spend B. to work; spend
C. work; spending D. to work; spending
—What were you and your cousin doing at this time yesterday?
—He was reading a magazine ________ I was writing an e-mail.
A. as B. while C. when D. after
Mr. Green told us _____ turn the lights off when we leave the classroom.
A. not forget to B. not to forget
C. not to forget to D. to forget not to
