While _____ an enquiry, you ought to enquire into quality, specification and price etc.
A、making
B、offering
C、sending
D、giving
While _____ an enquiry, you ought to enquire into quality, s - 外经贸英语函电期末复习和测试 - 外经贸英语函电 - U校园 | 大学网课搜题引擎