He will fail if he doesn't work hard at his lessons同义He won't ___ ___ he works hard at his lessons.

He will fail if he doesn't work hard at his lessons同义He won't ___ ___ he works hard at his lessons. It is quite____that he will fail.A.A.clearlyB.B.obviouslyC.C.plainD.D.plan If he_____(not be)careful,he will fail in the game.该填什么,并给理由 If Bobby doesn't work hard, he 'll fail the exam保持愿意_____Bobby_____hard,he'll fail the exam if he is not r____,he may fail to pass the test If he should fail,he would kill himself.为什么用should ,不是should用于第一人称吗? 英语达人进!Just because he failed once,it doesn't () that he will fail every time.A follow B happen C appear D seem just because he failed once,it dose not ---that he will fail every timea follow b happen c appeaer d seem为什么是A啊 he ____the test again,in which case ,his mother will be very disappointedA might fail B must have been C should fail D could have fail 为什么选A,which case He opened his lips as if——to speakA he isB goingC /D he will be I really do not know if he ( ),if he ( ),please tell me.A .will come,will come B .comes,comes C .will come,comes D .comes,will come If you don't go to the concert,_____.A so does he B so will he C neither dose he D neither will he If you go to the park tomorrow morning,______A.so will he B.so he will C.so he does D.so does he理由- - If he ________ harder,he will catch up with us soon.A.study B.studies C.will study D.studied He ___ be funnier if he ____a clown A.will,was B.would,were C.would,is D.will,are He is worked hard for fear that he.A.fails B.failed C.would fail D.fail I am waiting for my friend._____,I will go swimming alone.A.If he doesn`t comeB.If he won`t comeC.If he will come D.If he is coming I’m waiting for Jack ________, I will go swimming alone.选择题A. If he doesn’t come B. If he won’t come C. If he will come D. If he is coming并说出为什么选择这个答案