Although they feel tired，_____ they still go on working．（ ）
| A． |
and |
B． |
but |
C． |
so |
D． |
/ |
Jerry， is that boy with glasses ________ new classmates？
Yes． Let's say hello to ____________．（ ）
A．our； heB．us； himC．ours； hisD．our； him
Song of Youth is such ___________fantastic film that I have seen it twice．（ ）
A．aB．anC．theD．/
Do you believe that humans could live on Mars？
I don't think _____________________．（ ）
A．if it comes true
B．that it will come true
C．why it will come true
D．how does it come true
My computer has caught a virus and it has gone wrong．
______________________（ ）
A．I'm sorry to hear that．
B．Don't mention it．
C．It doesn't matter．
D．I'm sure it can work．
Oh! What's wrong with your finger？
I hurt it while I ___________ a model plane．（ ）
A．. madeB．was makingC．am makingD．make