Little ________ that we were watching his every move，so he seemed to be going his own way in this business.
| A．he realized | B．he didn't realize |
| C．didn't he realize | D．did he realize |
—Do you believe that opportunities always ________ the prepared minds?
—I couldn't agree more.
| A．make | B．change |
| C．keep | D．favor |
She wanted to tell him that she didn't want to do that, but she didn't know how to ________ it.
| A．take | B．put |
| C．carry | D．get |
Life is like riding a bicycle. ________ your balance, you must keep moving.
| A．Keeping | B．To keep |
| C．Keep | D．Being kept |
The red lanterns and colorful banners hanging everywhere ________ the festival atmosphere of the school.
| A．adapt to | B．add to |
| C．refer to | D．relate to |
Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.
| A．shall | B．must |
| C．may | D．will |