问题描述：
to catch up with my classmates ,I must study hard
在该句 I must study hard 中"hard"做状语用于修饰"复合谓语:must study"是吗?
而"to catch up with my classmates"是目的状语用于修饰全句?
在该句 I must study hard 中"hard"做状语用于修饰"复合谓语:must study"是吗?
而"to catch up with my classmates"是目的状语用于修饰全句?
问题解答：
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