13. He was absorbed ____ a book and didn’t hear your repeated call.
| A．to | B．in | C．with | D．At |
Tom was absent from school this morning, because sometimes he was a little weak and could ______ill .
| A．take | B．set | C．catch | D．fall |
. Will you pass me the dictionary _____ the cover is dark blue?
| A．its | B．which | C．whose | D．of which |
_____the girl could rush out of the house, the roof fell upon her.
| A．When | B．While | C．Before | D．As |
The company wouldn’t decide to_________ dozens of its employees in spite of the sharp drop in sales.
| A．lay off | B．lay down | C．lay out | D．lay aside |
Your shirt _______. It is too dirty.
| A．needs to be washed | B．needs wash |
| C．need washing | D．need wash |