中国大学MOOC: My brother _____ the Youth League since 1990.
举一反三
- My brother joined the League _________ March 24, 1990. He _____a League member for six years. A: on, has become B: on, has been C: in, has been D: in, has become
- My sister _____ the Youth League since 2009. A: joined B: has joined C: is in D: has been in
- My brother____ the Youth League since 1999. A: joined B: has been in C: has joined D: had joined
- 中国大学MOOC: ____, my brother passed the exam.
- My sister _____ the Youth League last year. She _____ a Youth League member for about a year now. A: joined…has become B: joined…has been C: has joined…has been D: did join…had been