---What’s the matter with you?
---After the long walk, my legs ______ and I couldn’t go any further.
| A. gave out |
B. gave off |
C. gave in |
D. gave up |
. (2010·江西名校模拟) —I’ve heard they went skiing in the mountains last winter.
—It ______ true because there was so little snow there then.
| A．may not be | B．won’t be | C．couldn’t be | D．mustn’t be |
The tomato juice left brown ____ on the front of my jacket．
| A．spots | B．points | C．tracks | D．traces |
Most of the professors _____ to our school were from South Africa．
| A．invited | B．to be invited | C．being invited | D．had been invited |
—Alice, you look puzzled．Haven’t you understood it?
—Yes．I _____of another problem just now．
| A．had thought | B．have thought | C．thought | D．was thinking |
By looking at a problem in as many ways as possible, creative thinkers can find solutions that would _______ remain invisible．
| A．otherwise | B．yet | C．already | D．fo rever |