China’s efforts on food production and safety will after the new food law is introduced.
| A．show off | B．turn off |
| C．put off | D．pay off |
__________ encouraged me most at that time was the comments of the teachers and my friends.
| A．Who | B．What | C．Which | D．That |
His modest business eventually __________ into a supermarket empire.
| A．expanded | B．attained | C．attached | D．switched |
We went to the Lincoln Memorial yesterday, which was __________ with visitors from all over the world.
| A．common | B．mixed | C．full | D．crowded |
Bring an extra pencil with you __________ something goes wrong with this one during the exam.
| A．in case | B．in case of |
| C．so that | D．in order that |
I keep medicines on the top shelf, out of the children's.
| A．reach | B．hand | C．hold | D．place |