Although the first part is easy the rest ____.
| A．is supposed difficult | B．are difficult |
| C．has proved difficult | D．could have been difficult |
______ all of them are strong candidates, only one will be chosen for the post.
| A．Since |
| B．While |
| C．If |
| D．As |
When asked about their opinions about the schoolmaster, many teachers would prefer to see him step aside ______ younger men.
| A．in terms of |
| B．in need of |
| C．in favor of |
| D．in praise of |
Let’s learn to use the problem we are facing ________ a stepping-stone to future success.
| A．to | B．for | C．as | D．by |
—Would you like to join me for a quick lunch before class?
— ______, but I promised Nancy to go out with her.
| A．I’d like to | B．I like it. | C．I don’t | D．I will |
Mary is really good at taking notes in class. She can_almost every word her teacher says.
put out B. put down C. put away D. put together