The conference has been held to discuss the ________of global warming on people’s lives all over the world.
| A．importance | B．effects | C．protection | D．impression |
Mary is a humorous and warmhearted woman and that is ________ she is a most popular person in her community.
| A．whether | B．because |
| C．how | D．why |
The organizers promise ________ wins the first prize a chance to go abroad.
| A．who | B．whom |
| C．whoever | D．whomever |
Besides the content of a book, ________ the editor also cares about is the number of readers.
| A．who | B．why |
| C．how | D．what |
—Don't you think it too expensive?
—Never mind ________ the price is; if it is what we need we'll buy it.
| A．what | B．how much |
| C．how | D．how many |
________ he can work abroad next year will depend on his parents' will.
| A．That | B．When |
| C．What | D．Whether |