—What’ s the lowcarbon life style like?
—Save ________ energy，produce ________ carbon.
A．more；more B．less；more
C．less；less D．more；less
She ________ this book for nearly three weeks.
A．has borrowed B．has lent
C．has bought D．has kept
—Alan，it’s late.Why not go to bed?
—Jenny hasn’t come back yet.I ________ for her.
A．waited B．have waited
C．am waiting D．was waiting
—When and where were you born?
—I was born ________ October 1st,1998 ________ Suzhou.
A．on；on B．in；in
C．on；in D．in；on
—Must I learn all these words by heart?
—No，you ________.It’ll be fine if you copy them in your exercise books.
A．needn’t B．can’t
C．shouldn’t D．mustn’t
—David has been away for more than 25 days.
—I miss him very much.You know,25 days ________ short.
A．is B．isn’t
C．are D．aren’t
