两个动名词或两个不定时作主语谓语动词用单数还是复数?如toseeandtofeel和swimmingandrunning.就是这类的.

Question

两个动名词或两个不定时作主语
谓语动词用单数还是复数?如to see and to feel和swimming and running.就是这类的.

Answer 1

这类并列结构作主语时谓语用复数
Reading and writing are very important.
注意：当主语由and连结时,如果它表示一个单一的概念,即指同一人或同一物时,谓语动词用单数,and 此时连接的两个词前只有一个冠词.
The iron and steel industry is very important to our life.