twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
Helen had to shout ________above the sound of the music.
I don’t know ______ tomorrow. Can you tell me?
A large number of students in our school ____ from the countryside; the number _____ growing these years.
According to the present economical ______, it is important to safeguard the regional growth and stability.
—I’m ______ happy to take you there in my car.—You are so nice. Thank you.