The violent disturbances in Bangkok had progressed to a point ________ the police had to drive away the protestants with tear gas．
| A．from which | B．that | C．where | D．what |
It had never ____ to him that he might be falling in love with her.
| A．occurred | B．struck | C．happened | D．hit |
—Tom, you should avoid____ late for class.
—I’ m sorry. I won’ t be late again.
| A．being | B．be | C．to be | D．to be being |
To have a good performance in the coming speech contest, first of all, you
should know your ______.
| A．strengths | B．benefits | C．values | D．techniques |
-- What is the price of petrol these days?
--- Oh, it ______ sharply since last month.
| A．is raised | B．has risen | C．has raised | D．is increased |
I was about to leave the office ______ an unexpected visitor came.
| A．while | B．as | C．when | D．before |