关于一个英语的句式OfthemillionswhosawHaley’scometin1986,howmanypeoplewilllivelongenoughtoseeitreturninthetwenty-firstcentury.1986年看见哈雷慧星的千百万人当中,有多少人能够长寿到足以目睹它在

Question

关于一个英语的句式
Of the millions who saw Haley’s comet in 1986,how many people will live long enough to see it return in the twenty-first century.
1986年看见哈雷慧星的千百万人当中,有多少人能够长寿到足以目睹它在二十一世纪的回归呢?
Return在这为什么没 to or doing.
When should use doing,and when should use to do.
Is return a noun or verb?

Answer 1

When a infinitive is used after the verb see,watch,observe,notice,look at,feel,hear,listen to,make,have,or let,and sometimes after help,the infinitive must be used without "to".In the setence above,"t...