经过英国伦敦格林尼治天文台旧址的0°经线又叫_________线，我国采用的时间是首都北京所在的东______区的区时，即“北京时间”。
本初子午；八
几个因数相乘，有一个因数为零，积就为（ ）。
选词填空。
1. Jenny is ___________ (wear, wearing) pink shoes.
2. My blouse is ___________ (red, blue).
3. What's ___________ ( you, your) favourite colour?
4. The boys ___________ (is, are) wearing sweaters.
5. Ling Ling is ___________ (I, my) friend.
6. Li Ming is ___________ (shorts, tall).
7. What ___________ (is, are) you wearing?
8. The black pants ___________ (is, are) new.
9. My sweater is ___________ (nice, look).
10. How many ___________ (pens, pen) do you have?
