It was playing computer games _____ cost the boy plenty of time _______ he ought to have spent doing his lessons.
I don’t have the information about SARS, but I’ll _____ later.
The thought of summer suggests _____.
My suggestion is that a plan for study ____ at first.
– I didn’t mean _____ her. -- But talking like that means ____ her.
Samuel Clemens, _____ Mark Twain, because a famous American writer.