Some little boys have difficulty ______their hearts into the lesson for a long time.
#61599
A
to put
B
to put
C
putting
D
puting
推荐题目
Why not _______ a taxi to the zoo? It can save us a lot of time.
#53971
A
taking
B
to take
C
takes
D
take
— Is Lily good at singing? —Yes , she is.We often hear her_______ in the next room.
#53890
A
sing
B
to sing
C
sang
D
Sings
