阅读下面的古诗，完成下列各题。
江上
[宋]董颖
万顷沧海万顷秋，镜天飞雪一双鸥。
摩挲数尺沙边柳，待汝成阴系钓舟。
（选自《宋诗鉴赏辞典》）
⑴What is he doing ?____ A、Sorry , I can't .
⑵Who can help me ?____ B、She's at the supermarket .
⑶Am I going to have a birthday party ?____ C、I'm fine , thank you . And you ?
⑷Where is your mum ?____ D、Yes , you are .
⑸How are you ?____ E、He's getting on the bus .
写出下列字母的小写形式。
X ____
