单选题 You'd better______how to repair computer.
  • A) to learn
  • B) learning
  • C) learn
  • D) learnt


【正确答案】 C
【答案解析】[解析] 本题考查固定用法。最好做某事：had better do sth．故选C。
[知识拓展] 最好不要做某事：had better not do sth．