Mary got into acting purely _____________.
| A．accidental | B．accident | C．by accident | D．with accident |
John received an invitation to dinner,and with his work___,he gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |
It is no _____arguing with Bill because he will never change his mind.
| A．use | B．help | C．time | D．way |
What kind of mistakes do you want to avoid ____full marks in your test?
| A．to get | B．get | C．getting | D．will get |
_____his being late again,he lost his job and had to stay at home.
| A．Owe to | B．As a result of | C．In case of | D．Because |
We don’t allow____here,but we can allow you ____in the next room.
| A．smoking,smoke | B．smoke,smoking | C．smoking,to smoke | D．smoke,to smoke |