____________ , we will review all the lessons before the final exam.

Such problems （ ） air pollution and traffic jams are becoming more and more serious in some big cities.

Mary likes classical music _____ her brother likes pop music.

Space vehicles were launched into outer space_____search of another living planet.

It’s vital that enough money_____collected to get the project started.

No sooner had he sat down to lunch （ ） there was a knock at the door.

It was not known （ ） he had said during the interview.

Before using your new pressure cooker, read the following （ ） carefully.

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

Mass production has made （ ） the goods and services we want at a lower price.

From her conversation, I_____that she had a large family.

—Where is my cell phone? I can’t find it. —Well, you ______ have put it somewhere.