---Are you still busy?
---Yes, I _______my work, and it won’t take long.
| A．Just finish | B．am just finishing | C．have just finished | D．just finished |
It was very lucky to see the "Monster of Lake Tianchi", ______ we didn't see it clearly.
| A．still | B．however | C．now that | D．though |
– Where are you working now?
– In Chongqing. But I _____ in Shanghai for 5 years.
| A．worked | B．had worked | C．have worked | D．had been working |
He likes helping others, ______ those who are in trouble.
| A．in theory | B．in particular | C．in favor | D．in practice |
He pretended ______ the problem, but he ______.
| A．to solve; lay | B．to have solved; lied |
| C．to have solved; laid | D．to solve; lied |
We ______ hurry because we still had a lot of time.
| A．don't have to | B．needn't have to | C．didn't need | D．didn't have to |