His brother is only six years old. He has difficulty       the story books.
#51062
A
read
B
reads
C
to reads
D
reading
推荐题目
There are so many kinds of MP3 in the shop. We can’t decide  ______.
#49042
A
what to buy
B
to buy what
C
which to buy
D
to buy which
After finishing_______his homework, Tom decided______a walk in the park.
#49883
A
to do;to take
B
doing; taking
C
doing; to take
D
to do; taking
Tina was looking forward to ________ to Mary’s birthday party.
#51309
A
inviting
B
being invited
C
invite
D
be invited
Camels can walk a long way without __________ . 
#50538
A
to drink
B
drinks
C
drinking
D
drank