Mobile phones are helpful in our daily life. They ______ everywhere now.
A. use B. are used C. used D. were used
— What were you doing this time yesterday?
—I______ my homework.
A. do B. did C. am doing D. was doing
Mike ______ a lot of work for the poor areas since he worked in Africa.
A. does B. did C. has done D. will do
Mr. Smith ______ our school next year.
A. will visit B. visits C. was visiting D. visited
— Must I clean the room now, Mr. White?
—No, you ______.
A. shouldn’t B. needn’t C. wouldn’t D. can’t
My bag is ______ than yours.
A. cheap B. cheaper C. cheapest D. the cheapest