He's busy________ English.
A．learn B．learning C．to learn
Let’s getthe bus.
A. on B. for C. at
They’resoy milk.
A. doing B. drinking C. rowing
We can see lots interesting books
A. in B. ofC. at
Look the people on the Lake.
A. atB. onC. in
选出不同类的一项
(1)A. doingB. peopleC. drinking
(2)A. dragonB. chessC. under
(3)A. interestingB. watchingC. reading
(4)A. inB. onC. do
(5)A. areB. hungryC. am