________online courses can produce good results remains to be seen．
| A．That | B．Whether |
| C．Who | D．Where |
Beijing isn’t what it used to be. The last decade _______ great changes in the city images.
| A．witnessed | B．was witnessed |
| C．has witnessed | D．had witnessed |
I’m not used to the way you speak to me. _______, I don’t want to continue the conversation.
| A．In word | B．At all |
| C．In other words | D．In another word |
It’s a great honor ______ to go abroad for further education.
| A．to admit | B．admit |
| C．admitting | D．to be admitted |
There is a mountain _______ the top is always covered with snow.
| A．of that | B．of which | C．whose | D．that |
He is good at _________ himself _______ new things, which makes me admired.
| A．adjusting, to | B．being adapted, to |
| C．being adjusted, to | D．adapted, to |