When we arrived at the airport, we were told our flight （ ）.

I have two children but （ ） of them likes fruits.

_____ more time，he’ll make a first-class tennis player sooner or later.

The girls （ ） a pizza and two drinks and took them to a dining table.

_____, the professor is still trying to learn a new language.

I cannot tell the_____difference between the twins.

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

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

We mention the importance of giving up smoking once and again, but hardly ______ it.

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

Three of us will go there, and the rest （ ） to stay here.

I can’t find my keys! Can you help me （ ） them?