Thomas Edison is known _____inventions______ a great inventor.
| A．to, as | B．for , as |
| C．as, to | D．to, for |
More often, the air in Hangzhou is dirty because of _____.
| A．corn | B．pollution | C．medicine | D．temperature |
If there is a will, there is a way to get the trouble ______.
| A．on | B．down | C．through | D．for |
The Chinese Characters Dictation Contest﹙汉字听写大赛﹚was very popular. There ____ a similar one in our school next Friday. I can’t wait.
| A．will have | B．will be | C．is going to have | D．are going to be |
—What do you expect ______ from your hard work?
---Nothing, I just want to try my best.
| A．get | B．to get | C．getting | D．got |
Though Mandela﹙曼德拉﹚____27 years in prison﹙监狱﹚, he thought it meaningful.
| A．planned | B．spent | C．happened | D．waited |