练习一：选用恰当的时态，用括号内动词的正确形式填空。
LastyearMr.Smith_____(go)toChinaandJapan.He_____(have)awonderfultime.He_____(do)alotofdifferentthingsand_____(talk)toagreatnumberofdifferentpeople.He_____(eat)ChineseandJapanesefoodand_____(visit)alotofinterestingplaces.Whenhe_____(go)backtoEngland,he_____(be)verytired.
练习二：句型转换：写出下列各句的否定形式（在可能的地方用缩略形式），
1.ProfessorJenningstaughtthemEnglishin1990.
2.Tomhadawonderfultimeinxi'an.
3.Maryfoundherkeysinherbedroom.
4.XiaoWang'sparentslivedinShanghaitenyearsago.
5.JanewenttotheGreatwalltwoorthreetimes.