. Suddenly everyone stopped talking. It became clear that something unexpected _____. But, for a while, I didn’t know what it was.
| A．has happened | B．is happening | C．happened | D．had happened |
Jack always sleeps late on Sundays. I’m sure he when we get to his home.
| A．is still sleeping | B．is to be sleeping |
| C．will still be sleeping | D．will have been sleeping |
Unitl tens of years ago, most zoos in such a way—animals in one area and birds in another.
| A．were organized | B．had organized |
| C．will organize | D．have been organized |
It is well known that the Internet will let people have to huge amounts of information from their own homes.
| A．appeal | B．attention | C．access | D．approach |
This summer she took a training course, which was to help people develop their reading skills.
| A．operated | B．devoted | C．designed | D．furnished |
My most moment was trying to introduce a woman whose name I couldn’t remember.
| A．embarrassing | B．awful | C．embarrassed | D．shabby |