—Attention，please．The plane has to be________because of the heavy rain．
—Oh，bad luck！We have to wait now．
| A．put on |
| B．put off |
| C．put up |
| D．put away |
The sweet smell of the flowers in the garden comes in_______the open window，making us feel in a good mood(心情)．
A．on
B．with
C．through
Did you know that the earth is home to________animals？
| A．million |
| B．millions |
| C．million of |
| D．millions of |
The little girl was________nervous that she couldn’t say a word in public．
| A．so |
| B．such |
| C．too |
| D．very |
—How long have Mr．and Mrs．Smith________？
—For more than twenty years．
| A．married |
| B．had married |
| C．got married |
| D．been married |
—English isn’t as________as Chinese．
—Maybe，perhaps it’s just because Chinese is your native language．
| A．easy |
| B．easily |
| C．easier |
| D．easiest |