—Does Liu Hui serve in the army? —No, bu
题型:选择题
问题:
—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
—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