The most important thing about cotton in history is _____ part that it played in _____ Industrial Revolution.
| A．不填；不填 | B．the；不填 | C．the; the | D．a; the |
If you have some difficulties ____ your grammar, you had better ask your teacher ____.
| A．in; on some advice | B．for; for some advices |
| C．on; some advice | D．with; for some advice |
--- How are you getting along with your studies?
--- Not very well, ____.
| A．of course | B．I'm sure | C．I'm afraid | D．on the other hand |
______ more attention, the tree could have grown better.
| A．Given | B．To give | C．Giving | D．Having given |
She pretended ______ me when I passed by.
| A．not to see | B．not seeing | C．to not see | D．having not see |
Things that we’re facing should be considered ____，so that we’ll deal with them well.
| A．on all sides | B．in order |
| C．around the corner | D．in place |