______ a teacher, his main duty is to help the students become better learners.
| A．As | B．By | C．About | D．With |
---He’s never been to an aquarium.
---_______.
| A．Neither have I | B．Neither do I |
| C．I never too | D．I don’t too |
Would you mind ______ those old jeans?
| A．don’t wear | B．not to wear |
| C．aren’t wearing | D．not wearing |
I have been skating _______ nine o’clock.
| A．for | B．since | C．at | D．From |
He _____ when the UFO arrived.
| A．was sleeping | B．were sleeping |
| C．has slept | D．is asleep |
—Can you speak English，Mr Wang？
—Yes’but only________．
A．little
B．a little
C．a lot