Ⅰ.单句语法填空
1．She came to ______ crossroads，where she was at ______ loss which way to take.
【答案】 a；a
2．The whole construction of our society depends ______ mutual trust，not distrust.
【答案】 on
3．______ (admit) to a key university，all the students in Senior 3 are making great efforts to study.
【答案】 To be admitted
4．Mr.Chang cannot be here for some reason，so his wife will accept the prize ______ behalf of him.
【答案】 on
5．The information ______ (obtain) from the Internet is not always true，so we should learn to check the facts we find on websites.
【答案】 obtained
6．How close parents are to their children has a great effect ______ the character of the children.
