题目:The experiment shows that proper amounts of exercise, if regularly, can improve our health.
A.being carried out
B.carrying out
C.carried out
D.to carry out
喵查答案:C
题目:The experiment shows that proper amounts of exercise, if regularly, can improve our health.
A.being carried out
B.carrying out
C.carried out
D.to carry out
喵查答案:C