摘要：Watching children, particularly they don’t know you are doing so,is really a pleasure. A.during B.when C.while D.since
网址：http://m.1010jiajiao.com/timu_id_2879622[举报]
Watching children, particularly ________ they don't know you are doing so, is really a pleasure.
- A.as
- B.when
- C.while
- D.since
Watching children, particularly they don’t know you are doing so, is really a pleasure.
A. as B. while C. when D. since
Watching children, particularly ________ they don't know you are doing so, is really a pleasure.
[ ]
A．as
B．since
C．after
D．that