—________great progress your son has made!
—Thanks ________your help.
A.What ;to
B.What a ;to
C.What;for
---_____ can we protect the environment in our daily lives?
--- As for me, I think we are supposed to use both sides of paper and try not to use plastic bags.
| A．How | B．Why | C．When | D．Where |
--- Hey, Eric! What has happened?
--- The lift is broken again! You know, I live on the _________ floor.
| A．twelve | B．two | C．twice | D．twelfth |
---I’m too nervous to give a speech before so many people. ---_______, Maria. You can do it.
| A．That’s true | B．With pleasure |
| C．Come on | D．You’re right |
Mom added some salt into the soup, ______ it still wasn't salty enough.
| A．so | B．and | C．but | D．or |
Swimming can be ______ exciting sport for kids in summer.
| A．/ | B．a | C．an | D．the |