–Sorry, Professor Smith. I didn’t finish the assignment yesterday.
--Oh, you _____ have done it as yesterday was the deadline.
A. must B, mustn’t C, should D. shouldn’t
She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
| A．what it is | B．it is what | C．how it is | D．it is how |
—Have you heard that Tom, along with his parents, ____to Japan?
—Really? No wonder I haven't seen him these days.
| A．has been | B．has gone | C．have been | D．have gone |
—What about the books ?
—Books of this kind _____ well .
| A．sell | B．sells | C．are sold | D．is sold |
The schoolboys and schoolgirls are walking along the street, _____a small redcap .
| A．each of them has | B．they each have | C．every wears | D．each wearing |
When the injured _____ to the hospital , they came to .
| A．was rushed , life | B．were rushed , life | C．rushed , lives | D．were rushed , lives |