題目列表(包括答案和解析)
Your pronunciation needs ________.
[ ]
Students should do everything they can ________ their study.
A．improve B．to improve C．improving D．improved
I'll work hard ________ my English.
[
]|
A ．improve |
B ．to improve |
C ．improving |
D ．improved |
—Why did you plant so many trees?
— ______ the environment.
| A．Improve |
| B．To Improve |
| C．Improved |
| D．Improving |
—Why did you plant so many trees?
— ______ the environment.
A．Improve
B．To Improve
C．Improved
D．Improving
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