单选题 Who is the likely ___ to him as a group leader.

单选题 The secretary introduced a new ___ to all the colleagues at the office this morning.

单选题 They may employ her for the vacant position of Chief ___ Officer.

单选题 Our group won the first prize under the ___ of the teacher.

单选题 David’s efforts to ___ a settlement were ended in vain.

单选题 Jim was so tired that he could not work ___.

单选题 American women were denied the right to ___ until 1920 after many years of hard struggle.

单选题 As soon as the observer saw what the children were doing , and noticed they could not accomplish the ___ task, she would attempt to help.