A. is built B. was built C. has been built D. had been built
A. has been written B. was written C. wrote D. write
A. must B. have to C. need to D. don’t need to
A. is built B. is going to build C. will be built D. will build
A. would B. may C. will D. should
A. Both B. All C. Either D. Neither
A. may B. shall C. need D. must
A. because B. until C. unless D. if
A. too; to B. enough ;to C. such;that D. so;that
A. go B. to go C. going D. went