He raised his gun, pointed it at a bear and _____aim, shot at it.
| A．took careful | B．taking careful | C．to take careful | D．taken careful |
— Let's have a game of tennis; the loser has to treat the other to a hot dog.
— .
| A．I'm afraid so | B．It's a deal |
| C．You've got a point | D．My treat |
Since many young people have become rich on Taobao.com, I wonder what ________ is like to run a successful on-line business.
| A．that | B．this | C．it | D．one |
A fire broke out in the building at about 7 on Tuesday morning, _____ in the death of a young girl.
| A．having resulted | B．resulted | C．being resulted | D．resulting |
--- You don't seem to be quite yourself today. What's wrong?
--- Oh, I'm suffering from a cold. Nothing serious, _____.
| A．yet | B．indeed | C．though | D．anyway |
— No one answered when I phoned this morning. Where were you?
— I for teeth in the dental clinic.
| A．was being treated | B．have been treated |
| C．was treated | D．treated |