—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
Hundreds of people leave their village to seek their _________ in cities.
Many of them ________ riding wild horses.
It is now a children’s festival, _____ they can ______ and go to their neighbors’ homes to ask for sweets.
_____ life will continue on the earth for millions of years to come will depend on ______this problem can be solved.
I’m afraid it will cost _________ money.A. a great many B.a large amount of C. a great number of D. a lot