______ there are living creatures in the outer space as those on Earth hasn’t been proved so far.
| A．When | B．How | C．If | D．Whether |
Nobody knows for sure what effect the global warming have ______ our environment in the long term.
| A．of | B．with | C．for | D．on |
_______ the trouble they were in, they still managed to help us with some money.
| A．In spite of | B．Because of | C．In terms of | D．In sight of |
Many of the one-family children are so accustomed to ______ that they react violently when they hear something different.
| A．be praised | B．being praised | C．praising | D．praise |
We each took ______ tea after having ______ wonderful supper at my aunt’s yesterday.
| A．a; / | B．/; / | C．the; the | D．a; a |
—Volunteering is becoming increasingly popular in China.
—Yeah, people are now ____that helping others is helping themselves.
| A．held | B．known | C．ashamed | D．aware |