He spent thirty minutes in finishing his homework. 
#58045
A
It took him half an hour to finish his homework.
B
It takes him half an hour to finish his homework.
C
It cost him half an hour to finish his homework.
D
He spend half an hour to on finishing his homework.
推荐题目
 --How long can I  _____ the book?--Three weeks.
#53227
A
borrow
B
lend
C
rent
D
keep
My uncle         the club in 2010.  He        the club for over 3 years.
#55149
A
joined; has been a member of
B
joined; has joined
C
has joined; has joined
D
has joined; has been in
It’s impolite_____ others.
#61954
A
laughs at
B
to laugh at
C
laugh at
D
laughing at