. Don't go too far into the sea, children, or the waves will _____ you off your feet.
| A．flow | B．cut | C．press | D．sweep |
-- 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 |
--- It took me two hours or so to walk here.
--- But you ______ here in Billy’s car.
| A．could have come | B．must have come |
| C．must come | D．could come |
Jack climbed ______ to the top of the mountain though he is only a boy of ten.
| A．in a way | B．in the way | C．by the way | D．all the way |
I don’t think he can pay off all the debt when he gets paid, ______?
| A．do I | B．don’t I | C．can he | D．can’t he |