Einstein was usually his scientific study that he even forgot to eat.
| A．very absorbing | B．very absorbed in |
| C．so absorbed in | D．such absorbed in |
Will these vegetables _________ for four to five days in the fridge?
| A．be stayed fresh | B．stay fresh | C．stay freshly | D．be stayed freshly |
The audiences’ reaction made it ________ that this play was a great success.
| A．evident | B．familiar | C．relevant | D．sceptical |
More and more fast-food restaurants have ________ all over the town in the last few years.
| A．picked up | B．taken up | C．sprung up | D．put up |
You just can’t imagine what a bad impression some Chinese left _____foreigners while travelling abroad, so it is necessary to impress _____ people the importance of good manners.
A. on, to B. on, on C. to, on. D, to , to
______ is even more important is ______ as the earth cooled down, water began to appear on its surface.
A. What, that B. That, what C, That, that D. What, what