If his parents are convinced ______ the fact that his son always focuses his mind _______his study.
| A．of; on | B．of; at | C．by; to | D．on; at |
With the guide ________ the way, we finally got to the village which we were looking for.
| A．led | B．leading | C．to lead | D．had led |
I don’t understand what the teacher means, but I’ve got ____ rough ide
a of ____ plan.
| A．the; a | B．不填; the | C．the; 不填 | D．a; the |
I need time to _______ on what the teacher taught in class.
| A．consider | B．reflect | C．imagine | D．suggest |
Many students are not __________ the harm of staying up late into the night, which causes damage to their health.
| A．well aware to | B．very aware of | C．aware that | D．well aware of |
Please post this letter in the post office nearby, and __________, I will get two tickets in the train station.
| A．in meantime | B．on the meanwhile | C．in meanwhile | D．in the meantime |