She stopped ______ and then ______ with us.
A. writing; talked
B. to write; talk
C. writing; talks
-- Which is your new neighbor, Liu Hua?
-- The man ______ T-shirt is red.
A. that B. whose C. which
I prefer ______ to .
A. reading; watching TV
B. read; watch TV
C. to read; to watch TV
I find ______ difficult to finish the work all by myself.
A. it B. that C. this
______ students in the classroom twenty. The others_____in the library.
A. The number of; is
B. A number of; are
C. The number of; are