科技改變生活 · 科技引領(lǐng)未來
科技改變生活 · 科技引領(lǐng)未來
watch-watched; are-were
take-took; did-do
visited-visit; said-say
stay-stayed; make-made
come-came; went-go
got-get; ate-eat
watch是觀看的意思，沒有cpmputed這個(gè)詞，應(yīng)該是computed，它是compute的過去式，是計(jì)算的意思
只有謂語動(dòng)詞watch變成過去式,而play是非謂語動(dòng)詞形式,變成現(xiàn)在分詞playing或不帶to的不定式,即原形,這個(gè)句子變成過去式有兩種,即
He watched his dog playing with his cat.他看到他的狗和貓正在玩耍.（看到的是一個(gè)畫面,不是全過程.）
He watched his dog play with his cat.他看到他的狗和貓玩耍.（看到的是整個(gè)過程.）
robots