1. His favorite lessons are math and English.
2. I spend half an hour practising playing the piano every day.
3. My uncle usually walks his dog (takes his dog for a walk) for 2 hours in the park.
4. You must help each other.
5. Does Sandy play volleyball twice a week?
6. Don’t park your bike in front of the supermarket.

1.最喜欢的为形容词favorite，主语为复数，be动词是用are。数学和英语翻译成math and English，故本题可翻译成 His favourite lessons are math and English.
2. 表示某人花费多长时间做某事可用spend+时间+doing，半个小时可以说成half an hour，练习做某事可以说成practise doing，弹钢琴可以说成play the piano，故本题可翻译成I spend half an hour practising playing the piano every day.
3.遛狗可以翻译为walk one’s dog或take my dog for a walk。表示时间长度可用for来连接，故本题可翻译成 My uncle usually walks his dog (takes his dog for a walk) for 2 hours in the park.
4. 必须为情态动词must，后跟动词原形，互相帮助可以翻译为help each other。故本句翻译为You must help each other.
5. 打排球可以翻译为play volleyball，本题为一般疑问句用助动词does来引导，每周两次翻译为twice a week，故本题翻译为Does Sandy play volleyball twice a week?
6.停放自行车翻译为park your bike，本题为祈使句，在动词前加don’t，在外部前面可用in front of，故本题翻译为 Don’t park your bike in front of the supermarket.

1. His favorite lessons are math and English.
2. I spend half an hour practising playing the piano every day.
3. My uncle usually walks his dog (takes his dog for a walk) for 2 hours in the park.
4. You must help each other.
5. Does Sandy play volleyball twice a week?
6. Don’t park your bike in front of the supermarket.

1.最喜欢的为形容词favorite，主语为复数，be动词是用are。数学和英语翻译成math and English，故本题可翻译成 His favourite lessons are math and English.
2. 表示某人花费多长时间做某事可用spend+时间+doing，半个小时可以说成half an hour，练习做某事可以说成practise doing，弹钢琴可以说成play the piano，故本题可翻译成I spend half an hour practising playing the piano every day.
3.遛狗可以翻译为walk one’s dog或take my dog for a walk。表示时间长度可用for来连接，故本题可翻译成 My uncle usually walks his dog (takes his dog for a walk) for 2 hours in the park.
4. 必须为情态动词must，后跟动词原形，互相帮助可以翻译为help each other。故本句翻译为You must help each other.
5. 打排球可以翻译为play volleyball，本题为一般疑问句用助动词does来引导，每周两次翻译为twice a week，故本题翻译为Does Sandy play volleyball twice a week?
6.停放自行车翻译为park your bike，本题为祈使句，在动词前加don’t，在外部前面可用in front of，故本题翻译为 Don’t park your bike in front of the supermarket.