No matter what you do, you should put your ________into it．
| A．mind |
| B．heart |
| C．brain |
| D．thought |
Usually an adult man can grow about 1.7 meters tall, _____ a few may grow as short as 1.3 meters.
| A．while | B．or | C．for | D．so |
The illness of her son is so ______ that she cannot go to sleep at night.
| A．satisfying | B．worrying | C．surprising | D．puzzling |
_______ you work hard, you won’t solve this problem.
| A．Even | B．As | C．Unless | D．Since |
My uncle _____ in Taiwan for 20 years. Now he has settled down in mainland.
| A．lived | B．had lived | C．has lived | D．was living |
No doubt she will be late. It’s ______ of her to keep all the other guests waiting.
| A．original | B．logical | C．normal | D．typical |