---Why does Peter look upset?
--- He is a newcomer to the class and is having difficulty ______ by his classmates.
| A．accepted | B．to be accepted |
| C．accepting | D．being accepted |
—How long do you suppose it will be____ Xiamen Railway Station comes into operation?
—Twenty days or so．
| A．after | B．before | C．since | D．that |
The twins ___ closely in appearance，but are totally different in character．
| A．resemble | B．distinguish |
| C．look | D．1ike |
The students in our school are encouraged to involve themselves in group activities，whether in or after class，______ they can develop their team spirit.
| A．when | B．which | C．that | D．where |
His brother , who____ in the army for five years，is now running a farm in our village
| A．serves | B．served |
| C．had served | D．has served |
The Ministry of Public Security has recently started a nationwide ____speeding，overloading and running red lights.
| A．celebration | B．conference |
| C．campaign | D．ceremony |