In the 21st century, all nations must take their ________of responsibility for the global safety.
| A．blame | B．charge | C．notice | D．share |
—How come you are always staring at me this morning?
—You look stupid! The way you wear is________ annoys me most.
| A．which | B．where | C．how | D．what |
Various optional courses being available, we can choose ________ based on our own interest.
| A．either | B．each | C．one | D．it |
Come and see me whenever ___________.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
The job is not very rewarding ________ money, but he is getting valuable experience from it.
| A．in terms of | B．in favor of | C．in case of | D．in charge of |
As ________ mountains surrounding our village are turning much greener, they have become ________ home to a large number of wild animals.
| A．the; / | B．the; a | C．/; a | D．the; the |