Every year, the coal workers their lungs X-rayed to ensure their health.
A. are having B. have had C. have D. had had
We ________ to go skiing tomorrow，but there’s no snow，so we’ll just stay home instead。
A. are going B. were going C. will go D. would go
—Has Sam finished his homework today?
—I have no idea. He ________ it this morning.
A. did B. has done C. was doing D. had done
This time next week I’ll be on vacation .Probably I ________ on the beach.
A. am lying B. have lain C. will have lain D. will be lying
She was surprised to find the fridge empty; the child _____ everything!
A. had been eating B. had eaten
C. have eaten D. have been eating
This coastal area a national wildlife reserve last year.
A. names B. named C. is named D. was named
