Many of his classmates came to his birthday party; , it was a great success to him.[ ]

The professor you referred to in the letter______ usstudents three lectures by next Monday.

The global warming is more and more serious, for which human beings ______

What do you and your cousin ______—I______ a baseball and my cousin ______two volleyballs.

Jack, how about going camping if it_______ tomorrow– Sounds great!