A、A. which
B、B. what
C、C. why
D、D. how
第1题
第2题
第4题
A、a
B、an
C、the
D、/
第5题
A、if
B、except
C、when
D、unless
第7题
A、How many balls can you see
B、How many balls do you see
C、How many balls do you have
第10题
A、How much is the ruler
B、How many rulers can you see
C、I can see five rulers