請教各位:
以下為什麼是選擇B而不是A。
_____ for useing the hotel's spa and dining services have appeared on the final
invoice.
A) Charge
B) Charges
C) Charging
D) Charged
謝謝。
題目出自於以下Youtube 106題:
https://www.youtube.com/watch?v=TOFSsKcXAEs

這裡的帳單是複數（？