单选题 We arrived at the station _____ late. or we ____the train.

单选题 Jim was so tired that he could not work__.

单选题 A well written composition calls for good choice of words and clear_____.among other things.

单选题 The only___that may defeat him has decided to quit in the election.

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

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

单选题 Our group won the first prize under theof the teacher.

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.

单选题 The secretary introduced a new ___to all the collcagues at the office this morning.