.Both ______ and ______ laughter do harm to your health.A.burst into tears;burst into B.to burst into tear;to burst intoC.bursting into tears;bursting into D.tear;/

问题描述:

.Both ______ and ______ laughter do harm to your health.
A.burst into tears;burst into B.to burst into tear;to burst into
C.bursting into tears;bursting into D.tear;/

选C。both...and...连接两个主语。所以用动名词做主语。

C.bursting into tears;bursting into
both是介词跟动词ing形式。and也一样。

选 C. bursting是burst的动名词形式,Both...and ...,中间接的都是名词或代词.Burst into tears突然大哭,burtt into laughter突然大笑.

选C..........我也猜的。。。。。。。。。。。。。。。。。。。。。。。。。。。。。