— _______ can a tiger weigh, do you know? — Yes, I know that a big one can weigh over 300 kilos.
When I walk_____ the classroom, all the students are listening carefully.
Please read them carefully. ____ you are, ___ mistakes you’ll make.
______ all the stories, I think the first story is ______ one.
— The classroom iscleanit was yesterday. — Sorry, I forgot to clean it.
John is ______ honest boy. He has______ useful book.