Please don’t stand in the kitchen, you’re（）（擋路了）.

He wears a pair of sunglasses（）（惟恐被別人認(rèn)出來）.

It may be necessary to stop（）(每隔一定時(shí)間) in the learning process and go back to the difficult points in the lessons.

It’s time（）(采取措施) about the traffic problem downtown.

His remarks left me （）(想知道他的真實(shí)目的).

Over a third of the population was estimated（）(無法獲得) to the health service.

The room is in a terrible mess; it （）（肯定沒打掃過）.

The ship’s generator broke down and the pumps（）(不得不用手工操作) instead of mechanically.

（）(我們沒有人料到主席會出現(xiàn)) at the party. We thought he was still in hospital.

Most doctors recognize that medicine is as much（）(是一門科學(xué)，也是一門藝術(shù)).