-------It’s time to have class. Please stop _________.   -----  OK.
#49528
A
to talk
B
talking
C
talk
D
talks
推荐题目
Thanks for ____me to the party.
#49189
A
ask
B
to ask
C
asking
D
Asked
They preferred ________ to school ________ a bus.
#49971
A
to walk, take
B
walking, to taking
C
to walk, take
D
walk, to take
We teachers should ______ students ______ us questions in class. 
#48995
A
be allowed, to ask
B
let, to ask
C
encourage, to ask
D
allow, ask