用所给动词的适当形式填空。1. Here are the three basic questions about (learn ) English .2. If you work hard ,you wi ll find it easy (learn ) English well .3. I am very tired. Who can help me (clean) the blackboard?4. I think you should (watch ) TV in English if you want to improve your English.
| 1. learning 2. to learn 3. clean 4. watch |
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