To save class time, our teacher has ________ students do half of the exercise in class and complete the other half for homework.

I’m going to buy my daughter another interesting novel, _______ she would like to read．

______ has already been pointed out, only by correcting mistakes, can you make progress.

—Can you come for dinner on Saturday or Sunday?—I’m afraid _______day is possible.

 Tom told me that he needed a chair and that soon he found ________.