Lucy looks blue today.— Yes, but I don’t know what it is________makes herso upset. [ ]

Jack had traveled six miles across the Channel _____his engine failed and was forced to land on the sea

_________ —280 yuan.

．________all the animals I’ve ever had，these two dogs are the most sensitive to the spoken word(2012·浙江，6)

Listen! Can you hear them _______ in the next room