下列各组字母中全部是元音字母的是 ____。
--- I won’t go to the party tonight. --- ______ you told me you would. What’s the matter?
--- You look nice in the dress!.--- Thank you. It ______ me seven hundred yuan. I like its design.
We didn’t arrive at school on time yesterday morning ________ the heavy snow.
That is the only way we can imagine ______ the waste of water in students’ bathroom.
Swimming is __________ diving.