When I passed the river, I saw some children ______ on the sand.  
#55146
A
play
B
were playing
C
playing
D
played
推荐题目
I can finish ___ the storybook this week. 
#59767
A
to read
B
reading
C
read
D
reads
 He        a baseball, but he doesn’t        a baseball bat.
#58984
A
have; have
B
has; has
C
have; has
D
has, have
The doctor looked ______ the old man ______.
#61427
A
at…care
B
over…careful 
C
up…carefully
D
over…carefully