he knew he could not finish his homework ___ .
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he knew he could not finish his homework ___ .
a.before his parents came
b.until his parents have come
c.by his parents came
d.when his parents come
写出原因!
a.before his parents came
b.until his parents have come
c.by his parents came
d.when his parents come
写出原因!
选b.他知道直到父母回来他才能完成作业.首先排除第三个,by 后面应该是名词或动名词,第四个也不对,语意不通.剩下的两个,由于主语是过去时knew,那么后面的时态应该是更加过去的时态,因为那是他knew的内容,于是选第二个.
he knew he could not finish his homework ___ .
英语填空I knew I could not finish the homework until he ______ .
he could not finish the homework
he has 承认 that he did not finish his homework
“_____ he ______(finish) his homework?”“Not yet.”
3.“_________ he ___________ (finish) his homework?” “Not yet
he must __(finish)his homework first.
To finish his homework,he needs____two hours.
He ____ (finish)his homework yet.
he ——(not finish)his homework until his father came back
__(not let)him go if he __ (not finish)his homework.原因?
he could have finished his homework,but he c() not to