用should,shouldn’t,must,mustn’t,needn’t,can’t,may,haveto填空．1.――Itakethemessageforyourightnow?--No,youneedn’t.2.Dowejointheclubtoday?3.Lookatthesign.Youthrowlitteraroundhere.4.--Iaskyousomequestions,

问题描述：

用should,shouldn’t,must,mustn’t,needn’t,can’t,may,haveto填空．

1.――Itakethemessageforyourightnow?--No,youneedn’t.

2.Dowejointheclubtoday?

3.Lookatthesign.Youthrowlitteraroundhere.

4.--Iaskyousomequestions,Dr.Li?--Sure,goahead.

5.Youfinishtheworktonight.Youhaveenoughtimetodoit.

6.Theyworkouttheproblembythemselves.It’stoodifficult.

7.Ifyouwanttobethinner,youeatlessmeat.

8.YouwatchtoomuchTV.It’sbadforyoureyes.