It’s very easy for us ________asleep with relaxing music going on when we’re tired.
#49356
A
fall
B
falling
C
to fall
D
fell
推荐题目
It is dangerous      football in the street.
#49989
A
play
B
to play
C
playing
D
played
The film ________ by Spielberg is worth _______.
#48536
A
was directed; seeing
B
directed; seeing
C
was directed; to see
D
directed; to see
Did you finish _____your homework last night? 
#49966
A
do
B
does
C
doing
D
done