It was only when I reread his poem recently __________ to appreciate its beauty.
| A．that I began | B．did I begin |
| C．I began | D．until I began |
The government has considered________ many steps ________the environment free from pollution.
| A．to take; to protect |
| B．taking; to keep |
| C．to have taken; stopping |
| D．having taken; preventing |
You’d better focus all your attention on the class. ________ you’ll miss the most important points.
| A．If not | B．If so | C．If any | D．If ever |
Suffering from war, hunger and illness, many African children are ________ food, love and care.
| A．in case of | B．in charge of |
| C．in face of | D．in need of |
There is a peaceful and calm ________ in the country, quite different from that of a big city.
| A．climate | B．atmosphere |
| C．system | D．situation |
---Where did you ________ our chemistry teacher?
--- It was in the supermarket ________ I bought the moon cakes.
| A．happen to meet; that | B．come across; where |
| C．meet with; what | D．run into; which |