------Could you please turn down the video? Your grandma now.----Sure.I will do it righ

问题补充：

------Could you please turn down the video? Your grandma now.

------Sure.I will do it right now.

A. is sleeping

B. was sleeping

C. slept

D. will sleep

答案：

(答案→)A. is sleeping

B. was sleeping

C. slept

D. will sleep

解析：句意：--请你调小录音机音量好吗？你奶奶正在睡觉。--当然可以，我马上调。第一句now是现在进行时的标志，故选A。短语right now. 立刻， 马上；was sleeping 过去进行时； slept 一般过去时 ； will sleep一般将来时。