He is very ---(thank ) to his teacher for his hlep.

问题描述:

He is very ---(thank ) to his teacher for his hlep.

答案是 thankful
分析 be thankful to sb 对……感激
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thankful
感激的

正确答案为:
thankful 形容词,感激的
be后面用形容词,做表语
对老师的帮助,他总是很感激.