--The man in a black suit _______ be our youth worker. -- I’m sure it _____ be him. I saw him in the laboratory building some minutes ago.
The science teacher told us the light faster than the sound.
My father used to to work on foot, but now he is used to to work by bike.
Could you tell me ?
Not only my parents but also my sister soccer.
There are many new words,you’d better in a dictionary.