Don't speak at once!________,please.A One at a timeB One for each timeB错在哪里了?意思不和A一样的么?
问题描述：
Don't speak at once!________,please.
A One at a time
B One for each time
B错在哪里了?意思不和A一样的么?
答
选A,意思是大家不要一起说,一个一个的来.