By nine o’clock,all the Olympic torch bearers had reached the top of Mount Qomolangma, _______________appeared a rare rainbow soon.
| A．of which | B．on which |
| C．from which | D．above which |
They finally reached________ they had long dreamed of.
| A．where | B．the place | C．that | D．there where |
If you sleep short of 7 hours, you are three times________ to catch a cold.
| A．possible | B．certainly | C．probable | D．likely |
—It’s so nice to enjoy the sunshine here on the green grass.
—You________us a right place.
| A．had introduced | B．are introducing | C．have introduced | D．introduce |
—Is your school bigger than ours?
—Yes. I guess it is________your school.
| A．as twice the size of | B．as two thirds big as |
| C．bigger than half | D．one third bigger than |
The disease, ________, could spread very fast.
| A．unless well controlling | B．if not well controlled |
| C．when not to control | D．although not being well controlled |