-- I think we have met somewhere. -- Was it ____ Monday in May ? And thank you for ____favor you did me fixing my flat tire. A a, a B the . the C a , the D the , a
_______ is known to all, Lu Xun was famous as a great thinker.
I would appreciate back this afternoon.
If something ________, it becomes less and less and eventually disappears completely.
It’s the first time ______ he has helped us.
Here are two pairs of shoes, ______ you may choose.