林先生今天早上乘公共汽车上班而不是步行. Mr Lin went to work____________walking.

问题描述:

林先生今天早上乘公共汽车上班而不是步行. Mr Lin went to work____________walking.

by bus but not

by bus but not

by bus instead of
instead of 代替;而不是,后面加动词的ing形式.