1.Davidisvery(积极的)inclass.答案是active求解释为什么是原形,这个句子是个什么时态.2.(至于说英语)English,somestudentsspeakwell.Asforspeaking,为什么speak加ing,不是原形.3.Weusuallyat

Question

1.David is very ____(积极的)in class.答案是active 求解释为什么是原形,这个句子是个什么时态.
2.___ ____ ____(至于说英语)English,some students speak well.As for speaking,为什么speak加ing,不是原形.
3.We usually ____ at the mall.
A.shopping B.shop
为啥不是A 还是说只有 go shopping shop和shopping的用法有什么区别.

Answer 1

1.active
active 活跃的,积极的,是形容词.
2.As for speaking
as for 至于,关于,是介词短语,后面接动词的ing形式.
3.B
shop = go shopping 购物,而单独shopping不能作谓语动词.