______is difficult to______ others.
----- Have you heard of Earth Day ?----Yes . The first Earth Day ______ in 1970 to educate us to protect our planet .
--- How was ___ dinner at Mary’s house ?--- Great . Her dad is ____ wonderful chef.
---Thanks for giving me your advice,Amy.---______. That’s what friends are for.
I need more physical and mental strength. Could you give me some ______?
The boy looks nice ______ white and the red sweater looks good ______ the girl .