We have a lot of homework______. We are  very  busy  today. 
#53721
A
to do
B
doing
C
to doing
D
do
推荐题目
 Millie swims faster than Cindy ________.
#56828
A
do
B
does
C
to do
D
doing
 Here is the book. First _________ it and then tell me what you think of it.
#51976
A
look for
B
look through
C
look up
D
look after
Let me _______ you find it.
#55196
A
help
B
to help
C
helps
D
helping