Sometimes we should roles so that we can understand each other’s difficulties, thus promoting our cooperation.
| A．occupy | B．imitate | C．assess | D．switch |
--- Sorry, I’m late.
--- That’s OK. I ___________ long.
| A．haven’t waited | B．don’t wait |
| C．haven’t been waiting | D．didn’t wait |
If you keep on doing stupid things like this, you'll get _______ someday!
| A．punished | B．punishing |
| C．being punished | D．to punish |
When the man came in, gun in hand, we all stood there, ________.
| A．astonished | B．astonishing |
| C．being astonished | D．having astonished |
I didn't imagine a writer in my childhood.
| A．becomes | B．becoming |
| C．became | D．become |
Visitors not to touch the exhibits.
| A．will request | B．request |
| C．are requested | D．are requesting |