问题
选择题
—How much if I wan to take one?
—You can take as many as you like because they are free of _____.
A．cost
B．charge
C．money
D．pay
答案
B
free of charge “免费”是固定短语。
搜题请搜索小程序“爱下问搜题”
—How much if I wan to take one?
—You can take as many as you like because they are free of _____.
A．cost
B．charge
C．money
D．pay
B
free of charge “免费”是固定短语。