. Most of the young men looking for adventure in the rainforest had difficulty ___ to the terribly hot weather.
| A．adopting | B．sticking | C．adjusting | D．devoting |
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 |
He wrote his first novel ______ studying in a university.
| A．since | B．as | C．while | D．with |