（C-E) 孩子们正在操场上做什么？
What are the children doing in the playground?
Some ____ the ducks are swimming.
for
to
with
of
Some of the cats are singing and some of ______ are dancing.
cats
us
they
them
Some of my ________ (朋友）are doing the high jump.
friends
fiend
friend
firend
(C-E) 这些苹果当中的一些是红色的。
Some apples are red.
Some of these apples are red.
Some of the apple is red.
These apples are red.
______ the woman ________ (do) the long jump? (这个女人正在跳远吗？）
Are, doing
Is, doing
Does, do
Do, do
（C-E) 我想Bob正在和他的弟弟在他的睡房里下棋。(Hint: with)
I think Bob is playing chess with his brother in his bedroom.
(C-E) 我想和他们一起打网球。(Hint: with)
I want to play tennis with them.
(C-E) 他们正在游泳池旁边溜冰。
They are skating next to the swimming pool.
I want ________ (play) football.
playing
to playing
to play
play
(C-E）你想跟孩子们一起在操场上打功夫吗？
Do you want to do kung fu with the children in the playground?
It ________ (look) fun.
looking
looks
is look
look
It ________ interesting.
look
looking
looks
is look
(C-E) 兔子们正在做什么？
What do they rabbit doing?
What are the rabbits doing?
What do the rabbits do?
What are the rabbits do?
（C-E) 有些男孩子正在树下面下棋。
Some boys are playing chess under the tree.
Some boys are playing under the tree.
Some boys playing chess under tree.
Some boys play chess under the tree.
(C-E) 女孩子们正在打篮球。
The girl is playing basketball.
The girls playing basketball.
The girls are play basketball.
The girls are playing basketball.
