— No one can answer the question _______ we can complete the task in time, do you know?
— Yes, and this is because we don’t know the way _______ the scientist used last time．
| A．whether; which | B．if; which |
| C．whether; in which | D．if; in which |
— You should apologize to her, Barry.
—______, but it’s not going to be easy.
| A．I suppose so | B．I feel so | C．I do so | D．I like to |
Gun control is a subject______Americans have argued for a long time .
| A．of which | B．with which |
| C．into which | D．aboutwhich |
. I was still sleeping when the fire______, and then it spread quickly.
| A．broke out | B．put out | C．run out | D．came out |
— How about eight o’clock outside the cinema?
— That ______ me fine.
| A．fits | B．meets | C．satisfies | D．suits |
Over the past decades, sea ice______in the Arctic as a result of global warming.
| A．had decreased | B．decreased |
| C．has been decreasing | D．is decreasing |