You ____be tired—you have worked only for ten minutes.
The sentence doesn’t make any , no matter how you read it.
We need to spend more time researching these suggestions so that we can make a(n) choice.
The only drawback of the voyage was the ______ sea, which made me very seasick.
At the end of the year 2010, some species of birds ddn’t survive the _____ winter in some European countries.
—Hi, I hear you’re going to London this summer vacation. — , I was going to, but now I have changed my plan.