It was required by the headmaster that all the students at the meeting.
Sadly, Robinson lived in a time ______ strict rules controlled ______black American could do in that country.
Though the thief tried every means, he couldn’t _____being caught by the policemen finally.
–Joe, are you free now? —No, but I _____my work, and it won’t take long, perhaps in fifteen minutes.
Tim is one of the boys who _____ to join the school football team.
The policemen entered a lonely village near Nam Co Lake, ______ they believed the suspect(嫌疑犯) was hidden somewhere.