The World Expo 2010 is being held at a time the world is looking for a new kind of balance between nature and cities．
| A．when | B．where | C．which | D．that |
--- What's one fourth and a half, do you know?
--- Yes, it's _________.
| A．two sixths | B．three fourths | C．one three | D．three sixth |
Now children, turn to page ________ and look at the _______ picture in Lesson Two.
| A．twentieth, one | B．twenty, one | C．twentieth, first | D．twenty, first |
Both of the two rulers are broken. I want to buy a _______ one.
| A．three | B．third | C．forth | D．/ |
December is the __________ month in year.
| A．twenty | B．twelve | C．twentieth | D．Twelfth |
--- What is the date today?
--- It's _________.
| A．Thursday | B．June the sixteenth | C．the best day | D．June fifteen |