单项选择题
A．who B．whom C．what D．which
不同的一项是（）A．askB．pastC．wasD．fast
单项选择题不同的一项是（）
A．ask B．past C．was D．fast
The S.S. Panama was ______.A．a shopB．a portC．a building...
单项选择题The S.S. Panama was ______.
When the author was in junior high school, ______.A．he ...
单项选择题When the author was in junior high school, ______.
