一、单词拼写
结合语境，根据汉语提示用单词的适当形式填空。
1．If the opportunity ________(出现), I'd love to go abroad for further study.
2．My father will buy me a(n)________(电子的) dictionary if I get good results in the final exams.
3．We should not judge a person by his ________(外貌)．
4．This afternoon I will ________(打字) the letter for you.
5．You must ________(发信号) which way you are going to turn.
