Everything comes with _____ price; there is no such ____ thing as a free lunch in the world.
| A．a; a | B．the ; / | C．the ; a | D．a ; / |
We must do the experiment carefully__________Miss Liu told us.
| A．what | B．since | C．as | D．while |
__________ everybody is here，let’s set out right away.
| A．Now that | B．Because |
| C．For | D．After |
__________ the days went on，the situation there got worse.
| A．With | B．Since | C．While | D．As |
Everything__________into consideration，they believed themselves more and returned to their positions.
| A．to take | B．taken | C．to be taken | D．taking |
__________ made her parents worried a lot.
| A．Her not to come back | B．Not her to come back |
| C．Her not coming back | D．Not her coming back |