— Shuofang Airport, please. I have to be there by 7:00.
— _________, but I'll do my best.
A. I can't promise anything B. Don’t worry
C. We still have enough time left D. Sorry, I can’t
I don’t doubt _________.
A. that the music is worth listening to
B. if the music is worth listening to
C. that the music is worth listening
D. whether the music is worth listening to
—Is your uncle in his _________?
— Yes. His _________ birthday is coming next month.
A. forty; forty-first B. forties; forty-first
C. forties; forty-one D. forty; forty-first
A few students don’t know ________ they should deal with stress before________ an exam.
A. how; take B. what; taking
C. how; taking D. what; take
—How much difficulty did you have this problem?
— .
A. to solve; No B. solving; None
C. solving; Nothing D. to solve; Neither
—It’s dangerous to walk across the street carelessly.
—You’re right. We can’t be _________ careful while crossing the street.
A. so B. very C. too D. more
