In spring and summer, the most popular________ is tennis.

A. child

B. childrens'

C. children

D. children's

A. is

B. was

C. were

D. are

A. must have got through

B. would have got through

C. would get through

D. could get through

A. pay

B. salary

C. wage

D. income

A. increased

B. is increased

C. has increased

D. are increased

A. except

B. unless

C. since

D. if

A. should come

B. is coming

C. comes

D. will come

A. wasn‘t

B. is it

C. was it

D. isn’t it

A. that

B. who

C. which

D. what

A. before

B. until

C. where

D. as