外研版七年级英语状语从句条件省略练习
一、单项选择题（共10题，每题2分）
1.Youwillfailtheexam______youstudyhard.
A.if
B.unless
C.when
D.because
2.______tired,hecontinuedworking.
A.Although
B.Though
C.Evenif
D.Despite
3.______necessary,Iwillfinishthetaskalone.
A.If
B.Unless
C.Whether
D.Though
4.______possible,avoidmakingmistakes.
A.If
B.Unless
C.When
D.Where
5.______introuble,callmeatonce.
A.If
B.Unless
C.Whether
D.Though
6.______timepermits,wewillgohiking.
A.If
B.Unless
C.Whether
D.Though
7.______knownearlier,wecouldhavehelped.
A.Had
B.Have
C.Having
D.Tohave
8.______asked,tellthetruth.
A.If
B.Unless
C.When
D.Though
9.______rainy,thematchwillbecanceled.
A.If
B.Unless
C.Whether
D.Though
10.______betterprepared,youwouldhavepassed.
A.Hadyoubeen
B.Haveyoubeen
C.Havingbeen
D.Tobe
二、多项选择题（共10题，每题2分）
1.Whichofthefollowingarecorrect?
A.Ifasked,hewillhelp.
B.Unlessinvited,don’tgo.
C.Whenpossible,comeearly.
D.Althoughtired,shesmiled.
2.Choosethesentenceswithcorrectomission:
A.Ifnecessary,we’llstay.
B.Unlessraining,we’llgoout.
C.WheninRome,doastheRomansdo.
D.Thoughyoung,heiswise.
3.Whicharecorrect?
A.Iftimeallows,we’lltalk.
B.Unlesshelped,hecan’tsucceed.
C.Whenindoubt,askquestions.
D.Althoughdifficult,it’spossible.
4.Selecttherightsentences:
A.Ifpossible,joinus.
B.Unlesstold,hewon’tknow.
C.Whenhappy,shesings.
D.Thoughold,heisstrong.
5.Whicharecorrect?
A.Ifneeded,I’llcome.
B.Unlessprevented,we’llstart.
C.Whenindanger,call110.
D.Althoughlate,heapologized.
6.Choosethecorrectones:
A.Iftrue,it’samazing.
B.Unlesssure,don’tanswer.
C.Wheninahurry,becareful.
D.Thoughexpensive,it’sworthit.
7.Wh