______, Carolina couldn't get the door open.
| A．Try as she might | B．As she might try | C．She might as try | D．Might she as try |
Jack is late again. It is ___ of him to keep others waiting.
| A．normal | B．ordinary | C．common | D．typical |
--- Thank you for keeping me ___ of everything that’s happening.
--- Don’t mention it .
| A．inform | B．informed | C．informing | D．to inform |
We can hardly believe what she says because she is ___changing her mind.
| A．regularly | B．eventually | C．firmly | D．constantly |
After he retired from office, Tom ___ painting for a while , but soon lost interest.
| A．kept up | B．took up | C．sped up | D．cleaned up |
At first ___ , the bag seems made of real leather, but actually it is just an imitation.
| A．sight | B．look | C．appearance | D．view |