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

When I （）(發(fā)現(xiàn)他騙我) I stopped buying thins there and started dealing with another shop.

But for his help, I （）(我不可能這么早完成).

There was a knock at the door. It was the second time someone （）(打擾我) that evening.

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

I have had great deal of trouble（）.(跟得上班上的其他同學(xué))

How close parents are to their children（）(有很強的影響) the character of the children.

The price of beer（）(從50美分到4美元不等) per liter during the summer season.

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

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