Why don’t you bring ______ to his attention that you are too busy to do it?
| A．this | B．what | C．that | D．it |
—I rang you at about nine, but there was no reply.
—Oh, that was probably__________I was seeing the doctor.
| A．why | B．when | C．what | D．that |
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 |