Have you ever met with this case in your life you can't understand others even if they have said something several times？
| A．where | B．what | C．that | D．which |
Stop cutting trees, ________ the earth will become worse and worse.
| A．and | B．then | C．but | D．or |
------------ Be careful! Don't break the bottles. Do you hear _______ I said, David?
------------Yes, mum.
| A．What | B．that | C．how | D．if |
Mr Smith comes from Australia, but he has worked in China for five years. So you can talk with him ______________.
| A．either in English or in Chinese | B．not in Chinese but in English |
| C．just in English, not in Chinese | D．neither in Chinese nor in English |
I can ________ swim _______ skate. Will you please teach me?
| A．either…or | B．not only… but also | C．both… and | D．neither… nor |
When I got the news that the ship would sink, I was _________ frightened ________ my legs couldn't move forward.
| A．so, that | B．very, that | C．too, that | D．too, to |