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Many of them turned a deaf ear to his advice, _______ they knew it to be valuable.

The head teacher will punish ________hasn’t finished the homework.

_______ I admit she has some shortcomings, I do think she is an attractive girl.

_______ you don’t have much experience in this field, why don’t you ask Professor Wang for advice?

We were about to start out________ our friends called us up from Shanghai.

The fact has worried many scientists ________the earth is becoming warmer and warmer these years.

________left the door unlocked must be held responsible for the accident.

________ is known to us all is that Antarctica is the coldest place on Earth.

It seems as if she has forgotten all about her ambition now        she made it hers to make a bit of progress every day when school started.

Don’t you know that Australia was, as a matter of fact, _________ used to be a nation of prisoners!