单项选择题
A．to have left B．to be leaving C．to leave D．to have been left
I have kept that portrait（）I can see it every day, as i...
单项选择题I have kept that portrait（）I can see it every day, as it always reminds me of my university days in London.
A．which B．where C．whether D．when
（）, the old professor is still trying to learn a foreig...
单项选择题（）, the old professor is still trying to learn a foreign language.
A．However he is old B．Old as he is C．He is so old D．As is he old
