—What about the student in your class, Mr. Wang?—The doctor said that sleep caused him poor memory and poor concentration.
--- Thank you for the flowers --- _______ . I thought they might cheer you up .
Seldom ____ any mistakes during my past few years of working here.
It was at the gate of our school ____we gave the visitors a warm welcome.
The lawyer seldom wears anything other than a suit ______ the season.
I tried phoning her office, but I couldn’t _______.