— Everyone must __________ the security check (安检) before getting on the plane at the airport.— Yes. It’s necessary to ensure the passengers’ safety.
_____of students have finished their work on time.
Don't keep the water running when you wash your hands.____________ A.I hope so B. I'm afraid not C. Sorry, I won't D it's nothing
This is the film ____ I like best.
What a fine day! The sunshine is looking ______the window.
With the development of science, our country is becoming_________