Come and see me whenever ____ .
A． you are convenientB．you will be convenient
C． it will be convenient for youD．it is convenient to you
D

試題分析：考查時(shí)間狀語從句，convenient的主語不能是人，所以在CD里面選，因?yàn)閣henever引導(dǎo)的是時(shí)間狀語從句，而時(shí)間狀語從句必須遵循一個(gè)原則：當(dāng)主句是祈使句或will/shall將來時(shí)的時(shí)候，從句用一般現(xiàn)在時(shí)態(tài)。因此只能選D不能選C，因?yàn)镃是will將來時(shí)，不符合語法原則。
點(diǎn)評：時(shí)間狀語從句和條件狀語從句的時(shí)態(tài)是�？嫉目键c(diǎn)，要注意主從句的時(shí)態(tài)不同，從句是一般現(xiàn)在時(shí)代替一般將來時(shí)，也可以用現(xiàn)在完成時(shí)代替將來完成時(shí)。
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