My answers:
$1.$ When will you receive a letter from Lan?
$2.$ What does Minh usually do after getting up?
$3.$ How often do you brush your teeth?
$4.$ What time does Nga have an appointment this morning?
$5.$ What time does she go to bed?
$6.$ How long does Animals programme last?
$7.$ Where do they live?
$8.$ Why do you like "Tom and Jerry" ?