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 |
Alan is a careful driver , but he drives ____ of my friends.
A. more carefully B. the most carefully
C. less carefully D
. the least carefully.
Danny _____ hard for long to realize his dream and now he is popular.
| A．works | B．is working | C．has worked | D．worked |
You will find _______ great benefit a puter will be of each time you use it to help you work..
| A．that | B．whether | C．how | D．what |
The speech which he made ______ the project bothered me greatly.
| A．being concerned | B．be concerned | C．concerned | D．concerning |
You don’t need 
to explain so much about this theory to Peter. _______ , he is clever enough to understand it .
| A．As a matter of fact | B．Anyway | C．In return | D．In a way. |