Tom kept quiet about the accident ______lose his job．
| A．so not as to | B．so as not to | C．so as to not | D．not so as to |
His work was_____by his boss.
| A．high thought | B．high thought of | C．good thought | D．well thought of |
We shouldn’t spend our money testing so many people, most of ___are healthy.
| A．whom | B．what | C．which | D．that |
Occasions are quite rare _____I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |
Many parents died in Wenchuan earthquake,_____their children orphans.
| A．remaining | B．keeping | C．leaving | D．letting |
The number of students in our school ____about 30,000 and ______them study hard.
| A．is; a large amount of | B．are ; a number of |
| C．are ; large amount of | D．is ; a large number of |