从A、B、C、D四个选项中，选出可填入空白处的最佳选项。
21．—Tom, would you like to come to our dinner party?
— ．
A．Yes, I would B．Yes, with pleasure
C．No, I can’t D．Sure, it’s my pleasure
22．Look at the trouble I am in If only I your advice．
A．followed B．would follow C．had followed D．should follow
