________ we do morning exercises every d
题型:选择题
问题:
________ we do morning exercises every day _________ us a lot of good.
A.If;do
B.That;do
C.Whether;does
D.That;does
________ we do morning exercises every day _________ us a lot of good.
A.If;do
B.That;do
C.Whether;does
D.That;does