This new teaching approach is specially ______ to develop children’s problem-solving skills.
__________ you understand the rule, you will have no further difficulty.
— Shall I go and buy two more bottles of beer? — No, I’ve already bought twenty. That _____ be enough for us two.
No matter how frequently __________, the works of Beethoven still attract people all over the world.
—What will you be doing at 4:00 tomorrow afternoon? —I _____ in my office.
The school _______ he once studied in is famous.