—Shall I give you a ride as you look so tired?
—Thank you. _______
A. It’s your duty. B. Don’t mention it.
C. Do as you like. D. It couldn’t be better.
Mike and I planned to meet at 8:00 at the school gate, but he didn’t _______ until 8:30.
A. turn up B. stay up
C. give up D. grow up
—Let’s go climbing to the top of the mountain, shall we?
—You _______be joking! Don’t you know I’m afraid of high places?
A. may B. must
C. can D. should
March 22 nd is Water World Day, but too much water ______ in our life every day.
A. wastes B. wasted
C. is wasted D. was wasted
—Do you think the problems in the physics test were difficult?
—Sure. I could ______ work them out.
A. easily B. hardly
C. nearly D. finally
You won't feel happy at school ______ you get on well with your classmates.
A. though B. when
C. unless D. because