I still remember there used to be _______ underground cave. My friends and I often had fun in_______ 18-foot-deep cave.
| A．an； the | B．a； the |
| C．an； an | D．a； an |
Be quiet! I have ___to tell you.
| A．anything important | B．something important |
| C．important something | D．important anything |
--___did you visit on vacation? --I visited my uncle.
| A．Where | B．What | C．Who | D．How |
___do you like better, this one or that one?
| A．What | B．Which | C．Who | D．How |
___he is very young, ___he can do many things.
| A．Although; but | B．Although; / |
| C．/; although | D．But; although |
I didn’t go to the mountains ___the bad weather.
| A．so | B．because of | C．because | D．but |