Such animals as dinosaurs died out becausethey couldn’t ____ to the sudden change of the climate.

When shall we go to the new park, today or tomorrow— are OK.

The more often one takes exercise, ______ he or she will become.

The air in Dongying is much worse than that in many other cities. We must do to protect our environment.

Could we buy a piano， Jack—I’m afraid there ______ enough room for one in the house.