39. Is this the reason ____ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
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 |
--- 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 |