if是如果的意思
as是因?yàn)榈囊馑?br/>unless是除非的意思
when是當(dāng)?shù)囊馑?br/>這句話的意思是“鮑勃沒有承諾在參加足球比賽,因?yàn)樗麕椭母改冈谵r(nóng)場”
所以選B
bob is not promised to join in the football match____ he has to help his parents on the farm
bob is not promised to join in the football match____ he has to help his parents on the farm
A、if
B、as
C、unless
D、when
A、if
B、as
C、unless
D、when
英語人氣：582 ℃時(shí)間：2019-10-17 14:13:28
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