作业帮Im going to (buy) a pen this afternoon.
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she will buy a bag she shall buy a bag she should buy a bag
shewillbuyabag她会买一个袋子.（表示将发生）sheshallbuyabag她一定会买一个袋子.（[常以第二人称、第三人称或名词作主语][表示说话者的意图、告诫、威胁、命令、决心等]应该；
I_(buy) a beautiful pen.----when _ you_(buy) it?
Ihaveboughtabeautifulpen,whendidyoubuyit?要用现在完成时.
but why ( )some bananas?A.not buy B.don't buy C.not you buy
A.notbuy有两种形式whynot和whydon'tyou后都接动词原形
He( ) (buy) a nicer car.He( )(buy) it last week
hasboughrbought再问：hasbought和bought吗，理由是什么。再答：现在完成时态表示已经有了。bought是因为有lastweek
We will buy a computer____?
当然是C,在将来时态中,一般就用in+时间,表示将来的时间
Buy a postcard
买张明信片.
plerse to buy tickets.A
整个句子应该是：Pleasewaitinlinetobuytickets.所以你问的应该是Please_______tobuytickets.A.A.cutinlineB.droplitterC.wa
Can she buy a toy
她能买个玩具车么?
buy them ( ) a 10% discount
at再问：理由~再答：ataxx%discount是固定搭配
they each buy a comic
他们每人购买一本漫画书同一句eachofthembuysaacomicbooktheyallbuycomicbooks
buy
uyfrom从…购买；从---买来
Please buy them a radio.
请给他们买一个收音机
have you [ ][buy]a dictionary
haveyouboughtadictionary?havedone完成时,答语是yes,ihave.或者no,ihaven't.
i( )buy a new watch...
选b:don'tneedto=need't所以ac不对“need”双重角色的用法及其区别“need”既可以作情态动词,也可以作实义动词,但是它们的用法不同.作为情态动词的“need”的用法与其他情态动
Money buy a little warmth!
金钱买不到热情
want to buy a new
想买一辆新自行车