__________ much difficulty we may meet with, we will finish the work in time.
| A．However | B．Whatever | C．Whichever | D．Though |
Many women ______ a good salary, but they chose to stay at home for the family.
| A．must make | B．must have made |
| C．should make | D．could have made |
It’s high time that Dalai Lama ______ playing politics.
| A．quit | B．to be quit | C．quited | D．quitting |
It is everybody’s desire that every effort___________ to reduce the pollution in our city.
| A．was made | B．be made | C．will be made | D．would be made |
．—Steve come back because the window is open．
—Yes．but he _______left it open last night．
| A．must have；might have | B．might have；can’t have |
| C．can have；should have | D．might；must have |
_________we sleep together or apart is one of the biggest cultural differences, and only in western societies ______ the feeling that babies should sleep apart from their parents.
| A．No matter; it is | B．Whether; is it |
| C．No matter; there is | D．Whether; is there |