It’s very hard ___________the swimming pool.
#50813
A
to swim across
B
to swim cross
C
swim across
D
swim cross
推荐题目
What about _____ for a walk after dinner? 
#50582
A
go
B
goes
C
went
D
going
Does he prefer         football to         with his online friends?
#51359
A
playing, chat
B
play, chatting
C
playing chatting
D
play, chat