I could tell he was surprised from the _____ on his face.

I wanted to pay for the coffee, but I found that all I had was a couple of （ ） coins.

The price of fish is （ ） during the Spring Festival.

Peter often accompanies his parents to the concert, ______ he does not like pop music at all.

What is the reason for （ ） on time?

（ ） some mammals came to live in the sea is now known.

I recognized John （ ） he entered the room.

She has （ ） chance to win the election as her opponent is too strong.

（ ） I fixed the plug properly, I still got an electric shock.

Please sit down and make yourself （ ）.

My job as a research assistant is very specialized_____, which demands a lot of academic knowledge.

A new technique （ ）, the output as a whole increased by 20 percent.