Swimming alone ____ be ____ dangerous. Do be careful.
#89464
A
need, highly
B
may, high
C
can; highly
D
can; high
推荐题目
 I ________ him in time, otherwise he would have fallen off the bike.
#86485
A
had supported
B
supported
C
have supported
D
support
To help Tom improve his English, I_______ that he take some online courses.
#86976
A
recommend
B
acknowledge
C
abandon
D
declare
From what I learn about their hotel, the service and the weather, they    their holiday very much.
#88226
A
couldn’t have enjoyed
B
shouldn’t have enjoyed
C
needn’t have enjoyed
D
can’t have enjoyed