This young tree could not have been damaged ______accident; I believe it was done _____ purpose.
| A．by; on | B．for; with | C．by; with | D．for; on |
He was busy last night, otherwise he ______ to the meeting.
| A．would come | B．would have come | C．came | D．had come |
_____ with a big family ,the man worked hard day and night.
| A．Loading | B．Having loaded | C．Loaded | D．Being loaded |
The environment is exactly everything that affect us in some_____.
| A．aspect | B．aspects | C．suspect | D．prospect |
Her skirt had been so _____ in packing that she had to iron it before going out.
| A．faded | B．torn | C．dirty | D．crushed |
In order to learn the _______ of the family business, Bill took a job as messenger boy in one of the offices.
| A．ins and outs | B．dos and don’ts | C．heads and tails | D．p’s and q’s |