The students are preparing for the exam.
The cook is preparing lunch.
When we arrived home, mother had already prepared dinner for us.
I was preparing for bed when I heard a knock ar the door.
How can you stand by and let him treat his dog like that?
The troops are standing by.
I'll always stand by you.
vi:不及物動詞 (不可接受詞) EX: I can swim.
vt:及物動詞 (可接受詞)EX: Play us your favorite record.
· 14 年前