______ he was exercising at the park yesterday morning, he found a purse under the tree.
A. While B. Before C. Though
September is the ____ month of a year.
| A．nine | B．ninth |
| C．nineth | D．ninety |
The little girl was very happy ______ her new friend gave her a beautiful present.
| A．but | B．because |
| C．so | D．although |
It will be hard for us to get up in the morning if we _______ to bed too late.
| A．went | B．go |
| C．will go | D．have gone |
-- Mum, ______ is my football?
-- It's under your bed.
| A．what | B．which |
| C．when | D．where |
I made this bookshelf all on ______ own.
| A．my | B．his | C．her | D．one’s |