—How do you find his advice?
—What he said sounded ________，I think.
| A．quite perfectly | B．nice and helpful |
| C．very clearly | D．polite or friendly |
—________ you interrupt now？Can't you see I'm on the phone?
—Sorry，sir，but it's urgent.
| A．Can | B．Should |
| C．Must | D．Would |
________ several times，he still couldn't understand how to operate the machine.
| A．Telling | B．Having told |
| C．To be told | D．Having been told |
Someone ________ his car in front of my house and it's blocking my way.
| A．was parking | B．parked |
| C．has parked | D．had parked |
________ here yesterday，he could have seen Jackie Chan.
| A．If Bob has come | B．If Bob came |
| C．If Bob had come | D．If Bob should come |
Some passersby witnessed the car accident ________ five passengers were killed，a baby included.
| A．in which | B．which |
| C．that | D．in that |