Almost every teenager will experience a period in their life _____ they aren’t content with their parents .
| A．when | B．where | C．that | D．which |
He has a great interest in tennis and ______ it twice a week over the past year.
| A．plays | B．played |
| C．had played | D．has been playing |
There were restrictions _____ the weight of luggage. As a result we decided to travel _____.
| A．on, light | B．in, light |
| C．to, lightly | D．with, lightly |
These citizenship ceremonies on Australian Day are intended to encourage ____, respect and promote friendship among people of different cultural and social backgrounds.
| A．reservation | B．endurance |
| C．tolerance | D．expedition |
Such plants, particularly___ to collectors, motivated them to explore on a large scale.
| A．appealed | B．attracted |
| C．appealing | D．attaching |
---Do you really think what he said was practical?
--- I don’t entirely agree, but ________.
| A．I don’t care | B．go ahead |
| C．just let it go | D．I doubt it |