_____ when one loses freedom does one know its value.
-What do you do yesterday afternoon?-I went to the bookstore,___ some books and visited my uncle.
Exercise is ______ as any other to lose unwanted weight.
-Do you think we can get there on time?-Yes,_______ the truck doesn’t break down.
The new machine,if _________ properly,will work at least ten years.
-You must be excited about going to Japan for schooling. -_________,but I’m afraid I can’t do well because my Japanese is poor.