现在完成时专练 班级 姓名 得分一.单项选择1. Li Hong has _ the army for 2 years. A. joined B. be in C. been in D. joined in 2. We have been friends since _. A. children B. five years C. five years ago D. five years before 3. Mike _ the story for a month. A. has bought B. has had C. had had D. has borrowed 4. You _ that question three times. A. already asked B. have already asked C. already have
