40. Could you pass the　　 ▲ 　　(knife) to me? We need them to make pumpkin lanterns.

A)根据句子意思，用括号中所给词的正确形式填空，每空填一词。

39. English dictionaries are very　　 ▲ 　　(use) to you when you study English.

10. -Would you please help me with my drawing skills?

　 - _________. You can come to my studio every Saturday.

A. That’s all right　　 　 B. No problem　　　 　 C. No, thanks　　　 　 D. Quite well

9. They want to develop a kind of dog-friendly food _________ will help dog owners cool down 　their pets.

　 　 A. who　　　　　 　　 B. what　　　　　 　　　 C. which　　　　　 　　 D. whether