Why haven't you finished your homework yet? You___________ to have finished it by last Sunday.
The bell ______ the end of the period rang,________ our heated discussion.
Out there, in the midst of the snow,______ in long, black clothes.
—Has every student passed the final exam? —No. Unfortunately, _______ three from each class have failed.
We were excited at the sight of two five-star red flags rising in the stadium, two pairs of Chinese athletes ______ at the moment.
At the sight of her mother, the surprise on her face was ______ by joy.