—— Hurry up. The bus is coming!
—— Oh, no, we mustn’t cross the street ______ the traffic lights are green.
| A．after | B．since | C．when | D．until |
I need more physical and mental strength. Could you give me some ______?
| A．suggestion | B．idea | C．advice | D．thought |
The boy looks nice ______ white and the red sweater looks good ______ the girl .
| A．with; on | B．in; on | C．on; in | D．in ; with |
--- ______ your English teacher ______ you?
---Yes, but he still encourages me to try my best.
| A．Does; strict with | B．Does; strict in | C．Is; strict with | D．Is; strict in |
It is clever ______ you ______ out the problem.
| A．for; to work | B．of; working | C．for; working | D．of; to work |
Tony has much difficulty ______Chinese , so he often asks me for help .
| A．understand | B．understands | C．understanding | D．to understand |