If we work with a strong will, we can overcome any difficulty, ________ great it is.
| A．what | B．how | C．however | D．whatever |
I had great difficulty ______ the suitable food on the menu in that restaurant.
| A．find |
| B．found |
| C．to find |
| D．finding |
At one point I made up my mind to talk to Uncle Sam. Then I changed my mind, ______ that he could do nothing to help.
| A．to realize |
| B．realized |
| C．realizing |
| D．being realized |
Sarah pretended to be cheerful, ______ nothing about the argument.
| A．says |
| B．said |
| C．to say |
| D．saying |
Recently a survey ______ prices of the same goods in two different supermarkets has caused heated debate among citizens.
| A．compared |
| B．comparing |
| C．compares |
| D．being compared |
It’s no use ______ without taking action.
| A．complain |
| B．complaining |
| C．being complained |
| D．to be complained |