Whether he’ll take part in the play is clear.whether在这个主语从句中有没有充当什么成份?

Whether he’ll take part in the play is clear.whether在这个主语从句中有没有充当什么成份? we’ll start off as we planned______.A No matter he will come or not B no matter whether he willCDwe’ll start off as we planned______.A No matter he will come or not B no matter whether he will come or notC whether is he coming or not D whether he 英语主语从句问题It hasn't been decided whether he'll come or not.想问可以把whether换成when吗!为什么? He is ill,I'll take his class instead(改同义句）He is ill,so I'll take the class ( )( )him I wonder whether he I'll take i'll take I'll take I 'll take it I don't know __ he will come tomorrow.___he comes,I'll let you know.A.whether;if B.if;whether C.when;whether D.that;if请做答并解释,最好说一下相近词的区别和用法 出现英语怎么说When the good oppotunity _____ _____ (出现).He'll take it You are wasting your time▁▁him;he'll never take your advice.(persuade) 对引号部分提问 I'll take it.it He has hamburgers for supper supper I wander ( )he found that I really wanted him to take the job.A.whether B.that the boy is not sure whether he can_ such a problem care handle catch take选哪个 whether great changes will take place为什么用whether 引导 the headmaster asked Ted—— he was going to take Mr brown‘s lessons instead and he said “No”A.why B.how C.whether D.when I don't know____ he is going to the party or not tonight;I'll call him to checkA whether B that C what D which