问题
Have you heard of Earth Day ?—-Yes . The first Earth Day ______ in 1970 to educate us to protect our planet .
A:celebrates
B:celebrated
C:is celebrated
D:was celebrated
B:celebrated
C:is celebrated
D:was celebrated
正确答案是：
同类题型
I hope that my father will quit smoking because I want him to live__________ my grandpa does.
Mo Yan, ____ winner of _____ Nobel Prize for Literature in 2012, is very popular now.
When shall we meet again?— Make it __________ day you like. It’s all the same to me.
_____ Tim’s help, I found my pet dog in the end. I should say thanks to him. [ ]