When I walked past his house, I heard him _______.
#50226
A
to sing
B
sang
C
sings
D
singing
推荐题目
You should try _______down and take a rest.
#49645
A
lie.
B
to lie.
C
lies.
D
lay.
It was difficult for the rich _____ a happy life.
#48476
A
to have
B
having
C
had
D
have
______ a host of the show is really ___________.
#50666
A
Being, a hard work
B
To be, hard work
C
Being, work hard
D
To be, hard-working