Great changes have taken place since then in the factory _______we are working.
Tom,you and I could hardly work out the mathematic problem, _______?
Even many years after his divorce, he still couldn’t figure out the reason for his ____ marriage.
— Has Mr. Tom White arrived? — Yes, already. _____ he wait outside or just come in?
So far this year, no measures _______ against cruelty to animals despite their protest in the newspaper.
The boy can speak English _____ his elder brother, but his written work is just_____ excellent.