It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.
Tell me how you work out the answer, _______ you?
“ Need he go?” “ Yes, he ______.”
“ Isn’t that Tom playing basketball?” “ It ______ be; he fell off the ladder yesterday and got badly hurt.”
“________ I have a glass of beer?” “ No, I’m afraid you ________.”
“ They went to the lecture, but it had been put off.” “ Oh, so they _______.”