we are busy ( )our lessons these days.a ,prepare!b,preparing

we are busy ( )our lessons these days.a ,prepare!b,preparing c,to prepare d,prepared
大哥大姐帮忙分析一下,为什么选B,

小乌龟88 1年前已收到3个回答举报

lawyerdy 春芽

共回答了19个问题采纳率：78.9% 举报

e busy doing是固定用法表示忙于做某事
eg：They are busy getting in the potatoes now.
他们现在正忙于收马铃薯.

1年前

礼拜堂的后边幼苗

共回答了1个问题举报

Be busy doing sth 是一个句型。记住就好啦

1年前

fgwei9088 花朵

共回答了4373个问题举报

b
be busy doing sth忙于做某事。
老师祝你学习进步！
望采纳，多谢！^_^

1年前

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你能帮帮他们吗

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