II．单项填空（共20小题；每小题0.5分，满分 10分）
从四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21．---I wonder, Mr Adams, ______ you’d mind us asking a few questions.
---______. I am all ears.
A．if; Yes, go ahead B．whether; No, go ahead
C．that; Sure, go ahead D．if; Sure, go ahead
22．---Shall I give you a ride as you live so far away?
---Thank you. ______.
A．It couldn’t be better B．Of course you could
C．If you like D．It’s up to you
