1. A. length B. lengthen C. long D. short
2. A. host B. hosts C. hosted D. hosting
3. A. includes B. include C. including D. included
4. A. famous B. fame C. infamous D. notorious
5. A. fastly B. faster C. fastest D. fast
6. A. fastly B. faster C. fastest D. fast
7. A. finish B. finishes C. finished D. finishing