中国大学MOOC: (April 24th /April 22ed) is the Earth Day every year?
举一反三
- Earth Day falls on ______. A: April 22 B: April 22, 1970 C: April 22, 1990 D: Sunday, April 22
- What day is Earth Day? A: 22nd, April B: 25th, April C: 23th, April D: 26th, April
- When is Earth Day celebrated? A: April 22 B: April 1 C: May 22 D: 2019/5/1 0:00:00
- When is the Earth Day? A: 22,March B: 22,August C: 22,April D: 22,November
- Earth Day is an annual event, celebrated on April 22.