On July 1st，we'll celebrate the ________ birthday of the CPC.（ ）
A．hundredthB．hundredC．hundreds
he is 70 years old， he still keeps exercising．（ ）
| A． |
If |
B． |
But |
C． |
/ |
D． |
Although |
I called you at 9：00 last night， but you didn't pick up．
Sorry，I at that time． What happened？（ ）
| A． |
listened to music |
| B． |
was listening to music |
| C． |
am listening to music |
| D． |
listen to music |
Mary went home after school． What was wrong with her？
She did too badly in math today．（ ）
| A． |
in surprise |
B． |
in danger |
| C． |
in silence |
D． |
in trouble |
You play sports every morning， don't you？
Yes． healthy，I won't give up，（ ）
| A． |
Keeps |
B． |
Keeping |
C． |
Keep |
D． |
To keep |
a report about "One Belt One Road"（"一带一路"）in our school this weekend．（ ）
| A． |
There used to be |
B． |
There will be |
| C． |
There is |
D． |
There was |