How old is his father?-He is thirty ________.[ ]

1 argued with my best friend yesterday. She is angry with me now. The underlined part means“______”.

Thanks your help, and now I have made great progress in my English.[ ]

Many old men prefer __________ in a peaceful countryside.

Who’s the man over there? Is it Mr. Black?— It _________ be him. He’s much taller.