The music by TFBoys ________nice. I guess their CDs must ________ well.—Yes, they are very popular among young people.

He’s fifteen years younger than you!— _________

How was your trip abroad?–GreatThe only pity is that I ______to buy some gifts for my friends

下面的说法恰当的一项是（ ）昔吴起出，遇故人而止之食。故人曰：“诺，期返而食。”起曰：“待公而食。”故人至暮不来，起不食待之。明日早，令人求故人，故人来，方与之食。起之不食以俟者，恐其自食其言也。其为信若此，宜其能服三军欤欲服三军，非信不可也！

Tom is a warm-hearted man He is ______ willing to help others [ ]