--- _______ I come back before 6 o’clock?---No,you _______.But you _______ be back later than 7 o’clock.
—Your English is very good. —But my brother learns it much ______than I do.
Funny jokes can always make us _____ when we are sad.
-- ________ your teacher __________ ? -- She is friendly and helpful.
The Changjiang River is _________in the world.
Daniel is my friend. I like to share my with him when 1 am happy.