He ____ for three years.
A: has joined the arm
B: has been in the army
C: has been serving in the army
D: joined the army
A: has joined the arm
B: has been in the army
C: has been serving in the army
D: joined the army
举一反三
- He for three years. A: has joined B: has been in the army C: joined D: has served the army
- — How long has he been in the army — Oh, he joined the army as far （） as 1997. A: ago B: away C: from D: back
- His brother joined the army three years ago.His brother______ ______ ______the army for three years.
- —Does Liu Hui serve in the army? —No, but he ________ in the army for three years A: served B: has served C: is serving D: would serve
- How long ___ the army? Five years. I ___ the army in 1999. A: have you joined; joined B: were you in; have joined C: did you join; was in D: have you been in; joined