The car wants ______.
A: to maintain
B: to be maintained
C: to maintaining
D: maintaining
A: to maintain
B: to be maintained
C: to maintaining
D: maintaining
举一反三
- It is a pleasure to _____ a friendship for a lifetime. A: make B: making C: maintain D: maintaining
- U.S. News _______ rankings of colleges since 1983. They are a very popular resource for students looking to apply to university campus. A: has been maintaining B: is maintaining C: maintained D: maintains
- U.S. News______rankings of colleges since 1983. They are a very popular resource for students looking to apply to a university campus.(2018) A: maintains B: is maintainingis maintaining C: maintained D: has been maintaining
- US News_____ ranking of college since 1983. They are a very popular resource for students looking to apply to a university campus. A: A. maintains B: B. is maintaining C: C. maintained D: D. has been maintaining
- The most important reason for maintaining stock cultures is A: to have a ready supply of microorganisms B: to maintain control of the fermentation process C: to maintain the genetic strain used in the reaction D: to use for patent identification