The old lady was so pleased with all ______ we had done for her ______ she wrote us a thank-you letter.
| A．what; that | B．that; that | C．which; that | D．that; what |
We often call Martin Luther King M.L.King .
| A．in short | B．for short | C．at short | D．to short |
Is that a book on farming? If so, I want to borrow___.
| A．this | B．one | C．it | D．the one |
Look out the traffic when crossing the road.
| A．at | B．of | C．for | D．with |
.Who is making so much noise in the garden?
__ the children.
| A．It is | B．They are | C．That is | D．There are |
The bridge is 1000 meters length.
| A．with | B．in | C．at | D．on |