Why did you get up so early?(Why did you get up so early?( )the first bus.

Why did you get up so early?(Why did you get up so early?( )the first bus.
Why did you get up so early?(
Why did you get up so early?( )the first bus.

Why did you get up so early?(Why did you get up so early?( )the first bus.
提问的特殊疑问词是why,那就该回答原因.起那么早是为了赶上第一班车,因此用to catch
catch the first bus译为赶上第一班车.

Catch

To catch
to do 表目的！catch the bus 固定搭配
catch the first bus 为乘上第一班车
望采纳
祝你学习进步

To catch up