Experts suggest that teenagers spend at least 30 minutes exercising, five times a week. Walking and riding your bike _____ , and ______.
#103295
A
counts; so are school sports
B
count; school sports count, either
C
count; so do school sports
D
counts; so school sports do
推荐题目
It __________ that the football match ________ put off because of the weather. 
#103528
A
suggested; would be
B
was suggested; be
C
is suggested; shall be
D
suggested; should be
 I am so excited! At this time tomorrow I _____ to Rome, my dream city!
#100633
A
fly
B
will fly
C
will be flying
D
have flown
—— Bob has gone to California.—— Oh, can you tell me when he _____?
#101904
A
has left
B
left
C
is leaving
D
would leave