---May I look at the menu for a little while?
---Of course, ______ sir.
| A．don’t worry | B．it doesn’t matter | C．enjoy yourself | D．take your time |
________ enthusiasm when he heard our advice, he didn’t take any notice.
| A．To lack | B．Lacking of | C．To lack in | D．Lacking |
You must have waited here for a long time, __________?
| A．mustn’t you | B．needn’t you | C．didn’t you | D．haven’t you |
Although a teenager, Fred could resist ______ what to do and what not to do.
| A．to be told | B．being told |
| C．having been told | D．to have been told |
Mr. Blake __________my letter, otherwise he would have replied by now.
| A．will not have received | B．needn’t have received |
| C．shouldn’t have received | D．couldn’t have received |
The version _______ to be closest to the author’s original now belongs to a national museum in Paris.
| A．was thought | B．thought | C．is thought | D．thinking |