问题
选择题
We ______ that you would be able to visit us, but you did not.
A．hope
B．hoped
C．had hoped
D．are hoping
答案
答案：B
搜题请搜索小程序“爱下问搜题”
We ______ that you would be able to visit us, but you did not.
A．hope
B．hoped
C．had hoped
D．are hoping
答案：B
NH3·H2O+H+ 
H2↑+Cl2↑+2OH-