The trouble is _____ we are short of hands.
| A．what | B．that | C．how | D．why |
单项填空（共20题，每小题1.5分，共30分）
“We can’t go out in this weather,” said Bob, ____ out of the window.
| A．looking | B．to look | C．looked | D．having looked |
He is so ______ to his English teaching that I admire him for his ______.
| A．devote; devote | B．devoting; devotion |
| C．devoted; devotion | D．devoted; devote |
. It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.
| A．other than | B．or rather | C．rather than | D．more than |
. To the surprise of many people, in ten years the city’s population ____ by 12%.
| A．gained | B．expanded | C．developed | D．spread |
--What about the protection?
---Let’s keep the surface ____ dirty by putting a cover over it.
| A．far from | B．free from | C．apart from | D．away from |