1 . The girl ________ in an orange astronaut suit was the only student at her school to join the important activity on April 20.

A．dressing

B．to be dressed

C．having dressed

D．dressed

2 . Due to the huge amount of construction and operational experience________over the past few years, China’s energy producers can grab a larger share of the global clean energy market.

A．having accumulated	B．being accumulated
C．accumulated	D．has been accumulated

3 . 是时候该报名参加由校方精心筹备的运动会了，那里，不仅有运动员们的高光时刻，更有无数将珍藏一辈子的时光(high time) （汉译英）

4 . The headmaster decided to put ________ glass on top of the wall to prevent the boys ________ over it .

A．breaking ; climbing	B．broken ;   climbing
C．broken ; to climb	D．breaking ; to   climb