_________ one has a child will one realize how great one’s parents are.
|
It’s a bad habit to sleep with all the windows ___.
| A．close | B．closed | C．closing | D．to close |
Instead of you ___ on me. I should wait on you.
| A．wait | B．waited | C．waiting | D．be waited |
“Not all my friends smoke” means :____.
| A．None of my friends smoke | B．All my friends smoke |
| C．Some of my friends smoke | D．My friends don’t smoke |
___ an answer, I wrote to him again.
| A．Having not received | B．Not having received | C．Not receiving | D．Did not receive |
When we got into trouble, __ people came to help us.
| A．a number | B．a number of | C．the number of | D．the numbers of |