The little boy showed great interest ________chemistry when he was doing it________
the first time.
| A．in；for |
| B．on；for |
| C．in；on |
| D．for；at |
Because of H7N9 bird flu，all the chicken markets in Shanghai have been closed and won’t open until further________.
| A．sign | B．symbol |
| C．signal | D．notice |
Hiking by oneself can be fun and good for health.It may also be good for________building.
| A．respect | B．friendship |
| C．reputation | D．character |
I can not understand why the issue of Syria has become so complicated________I learn more from the media.
| A．after | B．before |
| C．while | D．when |
It’s said that there are a large variety of coats in the store.It________be easy for you to find a suitable one.
| A．can | B．need |
| C．shall | D．should |
Misunderstandings________from lack of social communication，unless________properly，may lead to serious problems.
| A．arisen；handling | B．arising；handled |
| C．rising；handled | D．risen；handling |