I like _____ in the autumn when the weather is clear and bright.

Cars do cause us some health problems—in fact far more serious ________ than mobile phones do.

The boy became fatter and fatter each day and ＿＿＿made his parents sad. 

I'm expecting a pet dog for long，but mom has no time to buy _________ for me．

Senior three students in our school spend their days rushing from one exam to ______.