Joan saw her boyfriend off at the railwa
题型:选择题
问题:
Joan saw her boyfriend off at the railway station. She waved until the train was _____.
A.in sight
B.out of sight
C.at first sight
D.lost sight
Joan saw her boyfriend off at the railway station. She waved until the train was _____.
A.in sight
B.out of sight
C.at first sight
D.lost sight