作业帮how many countries___this olympic games?a presented b joined c joined in d took part in 为什么选d而不能选 c
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how many countries___this olympic games?a presented b joined c joined in d took part in 为什么选d而不能选 c
how many countries___this olympic games?
a presented
b joined
c joined in
d took part in
为什么选d而不能选 c
how many countries___this olympic games?a presented b joined c joined in d took part in 为什么选d而不能选 c
join in与 take part in 都可表示\"参加活动\",可互换使用,但后者强调参加比较庄重,规模较大,参与人数较多的活动.
D
join后面不必加in
take part in=join