—What do you think of John?
—He’s a good boy, but he ______ be really stubborn at times.
A. can B. might C. must D. need
In order to support his study, his brother can’t wait ______ money.
A. to earning B. to earn C. for earning D. for earn
It’s always difficult to live in a foreign country, ______ when you don’t speak the language.
A. extremely B. especially C. basically D. naturally
He still remembers the place ______ we visited last year?
A. that B. where C. when D. in which
We won’t give up ______ we should fail 10 times.
A. as if B. except for C. in case D. even if
The beauty of Hangzhou is ______ what words can describe.
A. less than B. no more than C. more than D. not more than