Would you like ______ me a favor?
A. doing
B. to do
C. did
D. does
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Sometimes I like to go ______ with my brother.
A. swim
B. swam
C. swimming
D. swims
People should help the ______ if they haveability.
A. disable
B. disabled
C. disables
D. able
There are ______ people here in the lake.
A. a lot of
B. a lot
C. lots
D. a lots
关于消化道平滑肌生理特性的说法,正确的是
A. 兴奋性比骨骼肌高
B. 收缩速度较慢
C. 伸张性小
D. 对化学刺激不敏感