He has his faults, but _____ he is an excellent teacher and we all respect him.
Our teachers do believe that all the students in our school will do well in the coming college entrance examination, _______?
—So when did you meet Joan?—It was last Sunday _______ she came to visit my sister.
—What do you think of Mrs. Smith? —She is _______ of a good housewife, for her children’s room is always a terrible mess.
—Would you like to join us in the barbecue this Friday afternoon?—Sorry, _______.
The charity sale our school organizes every year has taught us much. _______ we would never have learned it in class.