Tom spent two years _________ his book.
#50369
A
finishing writing
B
to finish writing
C
finishing to write
D
to finish to write
推荐题目
It is very cold .Let’s make a fire ______the room warm.
#49507
A
to keep
B
keeping
C
kept
D
keep
Lucy, please stop ___  me. My bike is broken. 
#50966
A
helping
B
to help
C
help
D
helps
We should set up some shelters _____the homeless people. 
#48569
A
help
B
helping
C
helped
D
to help