Now in order to __________ lungs, you have to start breathing deeply and cough more effectively.
| A．expand | B．examine |
| C．explore | D．explain |
Along with the letter was his wish _______ he would visit me this coming vacation.
| A．which | B．that | C．what | D．whether |
----Silly me ! I forgot what my luggage looks like.
----What do you think of _____ over there?
| A．the one | B．this | C．it | D．that |
______the website of www．google．com, and you will learn a lot about Obama’s first official visit to China．
| A．Searching | B．To search |
| C．Having searched | D．Search |
He’s ________ to fail the exam if he doesn’t do any revision.
| A．near | B．fit | C．bound | D．easy |
Many people believe we are suffering from environmental disaster _____we radically(彻底地) change the way we live.
| A．but | B．although | C．unless | D．so |