David, get up early, ________ you’ll catch the early bus.

Please give me a call and let me know ________you will come back for dinner.

It’s difficult to make your dream come true          you can live bravely, excitingly and imaginatively.

The little girl felt upset _________ her pet dog died.

—What do you think of the two pairs of trousers?—They don’t fit me well. They are _______ too long _______ too short.