1 . 选用方框中单词的适当形式填空，有两项为多余。

embarrass   competent   cheat   sail   refer   precise   contact

1. Ade acknowledged ________ in the examination.
2. Nobody knows ________ how many children participated in the activities in the kindergarten.
3. No matter where we come from, we shouldn’t be ________ about our accent.
4. Zac grew up on a boat and learnt how ________ when he was four, which formed the foundation of his success.
5. With ________ to your advertised position, I have the pleasure to say that I am the just person you are asking for.