Parents ______ good conditions(条件) _______ us. We should be grateful(感激的)to them.
My brother used to ________very late, but now he is used to __________ early.
— _______________? — My computer doesn’t work.
-- _____________________ -- It’s windy and cold.
-- ______ he ______ a book? -- Yes, he is.
______ arrive late for class. You must be ____ time.