_______ boys in my class can ski but _______ of them can do as well as Jim does.

He is old, but he ____ have gray hair.

Qinghai-Tibet Railway(青藏铁路) was completed last year. It is the __________ railway that connects Tibet with the other parts of China.

Is John coming by train? —He should, but he ________ not. He likes driving his car.

Will it be a long time _______ I come for the pictures? —-No. It _______ be ready by