The young man _______in studying paid no attention to the outside world.
| A．involved | B．involving | C．to be involved | D．being involved |
He could not have the murderer ________ away with killing those innocent people.
| A．got | B．to get | C．get | D．getting |
The fact is that I earned my passage by working as an unpaid hand, which _______ my appearance.
| A．accounts for | B．turns up | C．dresses up | D．cuts down |
_______ is even important is ______ as the earth cooled down, water began to appear on its surface.
| A．That, that | B．What, that | C．What, what | D．It, that |
When we get closer to the moon, we shall feel its gravity pulling us, but it will not be ________ the earth’s.
| A．as a strong pull as | B．a pull as strong as | C．as strong a pull as | D．as strong pull as |
Why______you do everything as if you have to win?
| A．must | B．can | C．need | D．shall |