—— Hurry up. The bus is coming! —— Oh, no, we mustn’t cross the street ______ the traffic lights are green.
— ___________ do you use the Internet? — Not often, twice a month.
— I can’t open this door, Jack. Could you give me a hand? —_________.
— Thanks so much for helping a lot! — ______.
--- What ________ the number of the students in your school? --- About two thousand. A number of them __________ from England.
Not only the students but also the teacher __________ basketball.