The country has already sent up three unmanned spacecrafts, the most recent ____at the end of last March.
When we were at school, we made a _________ to work together in the future, but he broke his promise later.
The case will go back to the judge if both sides refusing to give in can’t reach a(n) __________.
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.