The moment she came back from work，she________ to clean the kitchen thoroughly.
| A．set out | B．set about | C．set off | D．set up |
What a pity ______is ________ you didn’t arrive by daylight.
| A．there, because | B．it, that | C．it, when | D．that ,for |
As the day was fine ，I made the suggestion _______ for a walk in the park .
| A．we go | B．we will go | C．should we go | D．that we go |
It is uncertain ______ the experiment is worth doing .
| A．where | B．that | C．whether | D．how |
I’d like to work with ____ is honest and easy to get on with.
| A．who | B．whoever | C．whomever | D．no matter who |
Mary wrote an article on __the team had failed to win the game.
| A．why | B．where | C．what | D．which |