1 think we'd better keep to the subject, we'11 waste our time．
| A．and | B．or | C．but | D．so |
With efforts _______ conservation, we may believe that people enjoy a healthy life without the environment around them ________.
| A．focused on; suffering | B．focusing on; suffering |
| C．focused on; being suffered | D．focusing on; suffered |
__________ the reason , research shows that laughter is good for your health.
| A．Whatever | B．Whenever | C．Whichever | D．However |
The boy _______to his mother that he had _______ the table for supper and then ____ down to have a rest.
| A．lied ; laid ; lay | B．lied ; lied ; lay | C．lay ; laid ; laid | D．lay ; laid ; lied |
The young lady often makes meals ______ for herself for she is _____ about what she eats.
| A．particularly; special | B．specially; particular |
| C．especially; particular | D．specially; especial |
Price control would gradually disappear ________ a free market.
| A．in need of | B．in favor of | C．in charge of | D．in honor of |