. --- ____ for the tree tickets，I would not have gone to the film so often.
| A．If it is not | B．Were it not | C．Had it not been | D．If they were not |
She looks pretty ______ she wears.
| A．in | B．whatever | C．what | D．which |
It's ______ he helped you that I'm ready to help him.
| A．the reason | B．for | C．because | D．since |
______ you ever have any trouble, let me know.
| A．If | B．Whenever | C．While | D．X |
______, the library was closed.
| A．Sunday | B．Being Sunday | C．It to be Sunday | D．As it was Sunday |
Tom and Jack went ______ they could find work.
| A．every place | B．the city where | C．the place where | D．wherever |