Yestetday we went to plant trees on the hill nea

1.选b.一般过去时:助动词的过去式+ 动词原形
2.选c.一般过去式
3.选b.以辅音字母结尾的动词,过去时要双写末尾字母,再加ed.
4.选c.后面的句子用的是一般过去时,所以前面的自然也用一般过去时.
5.选c.首先,看到前面的yesterday,就知道这里要用一般过去时,故排除A；其次,have的第三人称为has或had,所以排除B,因此选C.
6.选c.last year,描述过去事件的标志.
7.选b.a和c的表达不合语法.
8.选a.(there be) = have,所以there have的表达是错误的.
9.选b.现在喜欢,但以前很讨厌,用一般过去时.
10.选c.过去时的提问：助动词的过去式+主语+ 动词（原形）+ 宾语,回答的是昨天的情况,就是enjoyed.

（1）正式用法中,who 是主格 （subject pronoun）,在句子中作主语（subject)、或在从句中作主词的补语（the predicate pronouns of their own clauses）.例如:
例句-1:We will give the money to the person who needs it most.
在上面的例句-1 中 who 是动词 needs 的主语.
例句-2:No one knows who you are.
在上面的例句中 who 是 从句 who you are 的补语.用英语说就是："who" is the predicate pronoun of the clause "who you are." 以前讲过,联系动词的前后都是名词（或代词）时,它们是指同一件事,所以 you = who.
（2）正式用法中,whom 是受格（object pronoun）,在句子中作及物动词的宾语（object）或介词的宾语.请看以下的例句：
例句-3:We filed a complaint against the contractor whom we hired last month.
在从句 whom we hired last month 中,we 是主语,hired 是谓语（及物动词）,whom 是及物动词 hired 的宾语.
例句-4:To whom does this book belong?
这里 whom 作 介词 to 的宾语（object）
（3）口语或非正式用法中,作动词或介词的宾语的 whom 放在句首时,往往被 who 所代替.如果 whom 紧接在介词之后,如 例句-4,则不可被 who 代替.
例句-5:Who (or Whom) do you take her to be?
这个句子可译为：你以为她是谁?
例句-6:Who (or Whom) is this letter from?
这个句子可译为：这封信是谁寄来的?
例句-7:Who (or Whom) did you invite to the party?
（4）引导定语从句时,whom 一般被 who 或 that 代替.
例句-8:The man (who/that/whom) I met in San Jose was very kind.

Yestetday morning,it was already 7:30 that (that- when) I get (get--got) up.Thinking I would be latr.I got dressing (dressing- dressed) quickly and left without breakfast.There were such (such- so) many people at the bus stop that it was hard to catch a bus.So I rush (rush- rushed) towards my school.Sufdenly,I ran into a(a- an) old lady and she fell down.Without make (make- making) an apolopy,I left him (him- her) and went on.Later,I heard the old lady was bad (bad-badly) injured in the leg snd she was sent to hospital.I felt it very sorry.And the following day I paid her (加上a) visit.