46、If you are able to get the tickets tomorrow,please tell me ( ) phone.A.at B.by C.on D.through

46、If you are able to get the tickets tomorrow,please tell me ( ) phone.
A.at B.by C.on D.through

B
by phone通过电话

B
by：表示借助于……手段。 翻译为：如果明天你能拿到票的话，请你打电话告诉我。