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 |
—Look at this, what a perfect item! $100 is my last offer.
—OK..
| A．With pleasure | B． It’s a deal | C．My pleasure | D．It’s up to you |
Let us suppose that we him about it, what would have happened?
| A．had not told | B．did not tell | C．will not tell | D．don’t tell |
Some educators that children should be rewarded for their great performance.
| A．assumed | B．adopted | C．advocated | D．convinced |
—It was cold and the road was icy.
—It a comfortable journey.
| A．can’t be | B．shouldn’t be | C．mustn’t have been | D．couldn’t have been |
what has recently been done to provide more buses for the people, a shortage of public vehicles remains a problem.
| A．Except for | B．But for | C．Because of | D．In spite of |