As we came to the work site, the workers were seen _______the new house.
A. building B. build C. built D. to build
. The reason for all the changes being made _______to us yet.
A. has not explained B. has not been explained
C. did not explained D. were not explained
24. You ought to have put the milk in the refrigerator, and now ________sour.
A. it smell B. it is smelt C. it smells D. it is smelling
Tim ________since he lost his job three weeks ago.
A. had been unemployed B. was unemployed
C. has been unemployed D. has unemployed
– “Have you moved into the new flat?”
“Not yet. The room ________.”
has been painted B. is painted C. paints D. is being painted
It is said that a new robot ______ by him in a few days.
A. designed B. has been designed
C. will be designed D. will have been designed
