__________ sleep every night is important for teenagers. _________, loss of sleep can make you feel tired, and even cause you to put on weight.
| A．A good amount of; As a matter of fact | B．A good number of; In truth |
| C．A large amount of; As matter of fact | D．Plenty of; In a fact |
This is not an economical way to get more water; ________, it is very expensive.
| A．in return | B．on the other hand | C．in a word | D．on the contrary |
—Which of these two books will you take？
—I’ll take ______, in case the journey is boring.
| A．either | B．both | C．all | D．neither |
I know this is not quite the right word, but I can’t be bothered to think of _____.
| A．a better | B．a best | C．the better one | D．the good one |
I am looking forward to ______ your answer as soon as possible.
| A．receiving | B．to receive | C．received | D．Receive |
The teacher as well as the students who ______ fond of football, ______ playing together.
A. are; is B. are; are C is; are D. is; is