.All the students were listening carefully, with their eyes _____on the teacher.
| A．fixed | B．being fixed | C．fixing | D．to fix |
I heard a soft _______ at the door. When I looked up, I found it was Mary.
| A．noise | B．sound | C．voice | D．cry |
Last night he left his bike outside and had it_______.
| A．stealing | B．steal | C．stolen | D．to be stolen |
To keep ______, we must do more out-of-door exercises.
| A．well | B．fine | C．fit | D．health ‘ |
Thank you for_______ my trouble.
| A．talking | B．going | C．sharing | D．getting |
It is worth considering what makes “convenience” foods so popular, and ____ better ones of your own.
| A．introduces | B．to introduce |
| C．introducing | D．introduced |