---- Look! Everything here is under construction.
---- Oh, has the building once ___ for exhibition been pulled down, too?
| A．having been built | B．being built | C．to be built | D．built |
At a rough estimate,Nigeria is reat Britain
| A．three times the size as | B．the size three times of |
| C．three times as the size of | D．three times the size of |
Cars do cause us some healthy problems—in fact far more serious ________ than mobile phones do.
| A．one | B．ones | C．it | D．those |
The doctor advised Vera strongly that she should take a holiday,but ______ didn’t help.
| A．it | B．she | C．which | D．he |
We had three sets of garden tools and we seemed to have no use for _________.
| A．none | B．either | C．any | D．each |
You will find as you read this book that you just can’t keep some of these stories to_________.You will want to share them with a friend.
| A．itself | B．yourself | C．himself | D．themselves |