Peter with his classmates____ for the bus when the earthquake happened．（ ）
A．is waitingB．was waiting
C．are waitingD．were waiting
I like these books because they offer me a lot of__ knowledge．（ ）
| A． |
useful |
B． |
awful |
C． |
useless |
D． |
boring |
Judy ，is that boy with glasses______new classmate？
Yes． Let's say hello to_________．（ ）
| A． |
we； he |
B． |
us； himself |
| C． |
ours； his |
D． |
our； him |
Have you ever worked as______volunteer during the COVID﹣19 pandemic （新冠疫情）？
Yes． It was_____unforgettable experience for me．（ ）
| A． |
an； an |
B． |
an；a |
C． |
a； an |
D． |
a；a |
Jack's uncle has got the COVID﹣19． Now he is in a hospital．
．（ ）
| A． |
It doesn't matter |
| B． |
That's all right |
| C． |
I'm sorry to hear that |
| D． |
Be careful next time |
Don't get off the bus until it ．（ ）
| A． |
will stop |
B． |
stop |
C． |
stopped |
D． |
stops |