1. I don’t think ______ possible to master a foreign language without much hard work.
A. this B. that
C. its D. it
2. Tuition in some western universities runs ______ twenty thousand dollars a year.
A. so high as B. as high as
C. so high to D. as high to
3. The beauty of the Yellow Mountains is ______ I can describe in words.
A. more than B. not any more than
C. no more than D. more rather than
4. Since Jack ______ take up the job, we might as well ask Richard to do it.
A. shouldn’t B. mustn’t
C. wouldn’t D. needn’t