It takes us about an hour ________ our homework every day.
#57246
A
do
B
doing
C
to do
D
did
推荐题目
When Tom got to the examination room, he realized he ______ his pen at home.
#52775
A
was leaving
B
had left
C
forgot
D
was forgetting
So far this year, many new houses ________ in Wenchuan with the help of the government.
#61009
A
build
B
are built
C
will build
D
have been built