I a report about the air pollution in my hometown all the morning and haven’t finished it yet.
| A．wrote | B．have been writing |
| C．was writing | D．have written |
In 1778, Bank was elected _________ president of the Royal Society, ________ position he held for 43 years.
| A．the; the | B．不填; a | C．a; a | D．不填; the |
—You've got your flat furnished, haven't you?
—Yes. Isome used furniture at the Sunday Market and it was a real bargain.
| A．will buy | B．have bought | C．had bought | D．bought |
She got stuck in a terrible traffic jam on the highway to Shanghai, or shedinner with her family now.
| A．will be having | B．would be having | C．is having | D．was having |
—I'll ask the teacher about the attributive clause. I'm very puzzled about it.
—That's just ________ most of our classmates have doubt.
| A．what | B．why | C．where | D．how |
A small plane crashed into a hillside five miles east of the city, _____all four people on board.
| A．killed | B．killing | C．kills | D．to kill |