从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1. ______ important thing in life is to have a great aim, and ______ determination to
attain it.
A. An ; 不填 B. A ; the C. The ; the D. The ; 不填
2. I have no one ____ me, for I can deal with it all by myself.
A. to help B. to have helped C. help D. helped
