Nobody knows how long and how seriously the shakiness（不穩(wěn)定） of big businesses will （） down the economy.

The weakening housing market continued to take its（）on the industry.

His company promised to pay for his health （）in addition to other benefits.

The price they offered for my old car was so low that I（）it down.

I tried very hard to persuade him to join our group but I met with a flat（）

Mr. Edward was not in, so his brother acted as （）at the party.

She couldn't（）laughing at him in those clothes.

She is very nice, but because she has a（）way of speaking, she is slow in making friends

The student's first attempt at writing a play was a far（）from the work of Shakespeare.

The aircraft vanished without（）