1．I'm afraid I have no alternative but ________(report) you to the police.
[答案] to report
2．This hospital is attached ________ the medical college nearby.
[答案] to
3．We may rely on ________ that next year is going to be a year of changes.
[答案] it
4．Having lived in China for 8 years, Helen has ________ good command of both English and Chinese.
[答案] a
5．He rescued a child out of the fire at ________ risk of his own life.
[答案] the
