We all long for _______ world where people live in _______ peace without killing and war.
| A．the; / | B．a; the | C．a; / | D．the; the |
the large amount of time devoted to playing the piano, she doesn’t play well enough.
| A．Because | B．Since | C．Despite | D．With |
With challenges before you, you should believe your courage is makes a difference.
| A．that | B．what | C．which | D．whatever |
Our chemistry teacher announced that he would do the experiment in a different way
we might find interesting.
| A．which | B．in which | C．in that | D．whom |
While she is a lovely girl, she be extremely difficult to work with.
| A．may | B．must | C．should | D．can |
A dictionary is necessary if you want to learn English, so you’d 
better buy .
| A．this | B．that | C．it | D．one |