______hours do you exercise every week ? Nine hours.
#56316
A
How many
B
How often
C
How much
D
How long
推荐题目
Stephen Hawking can’t walk or even speak,_____he has become very successful.
#58267
A
but
B
and
C
or
D
then
—— Hurry up. The bus is coming! —— Oh, no, we mustn’t cross the street ______ the traffic lights are green.
#55778
A
after
B
since
C
when
D
until
