What will the world use for power when it________ oil?
| A．run out of | B．is running out of |
| C．has run out of | D．ran out of |
Mary made coffee ____ her guests were finishing their meal.
A. so that B although C. while D. as if
The wise use that is ____ the limited time has greatly contributed to his success.
| A．made of | B．to make of | C．making for | D．made for |
I’ll spend half of my holiday practicing English and ___ half learning drawing.
| A．another | B．the other | C．others | D．other |
“I don’t understand what you are saying,” she said, with a _____ expression on her face.
| A．puzzling | B．puzzled | C． puzzle | D．puzzlement |
----Have you finished your homework?
-----No, I ________ my younger sister all day yesterday.
| A．was looking after | B．would look after |
| C．had looked after | D．look after |