If you order the tickets by phone, you have to pay a $2 ____ charge as well as $13.50 for each ticket.
A.serving B.serve C.service D.serves正确答案C
If you order the tickets by phone, you have to pay a $2 ____ charge as well as $13.50 for each ticket.
A.serving B.serve C.service D.serves正确答案C
