Last thursday I noticed some parents --- at the back of the

问题描述:

Last thursday I noticed some parents ___ at the back of the classroom an ___ to the teacher
A. sitting ;listened
C.sitting;listening
--Let's go to see the dolpgins.
--Great ! I like watching them ___ and swim.
A.jump B to jump
C jumping D jumped
1个回答 分类:英语 2014-10-11

问题解答:

我来补答
C
notice sb doing ,如果是seat,则用seated,
A
watch sb doing /do
后面是swim,则前面还用原形
 
 
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