练习
1. 车水马龙的街道上,清洁工们正在路边忙着打扫落叶。
On the ________ ________, cleaners ________ ________ the fallen leaves.
2. 电话占线了。彼得可能正在忙着做家务。
The line ________ ________. Peter may ________ ________ housework now.
1. 车水马龙的街道上,清洁工们正在路边忙着打扫落叶。
On the ________ ________, cleaners ________ ________ the fallen leaves.
2. 电话占线了。彼得可能正在忙着做家务。
The line ________ ________. Peter may ________ ________ housework now.
答案:
busy street,are busy cleaning
@@is busy,be busy doing
@@is busy,be busy doing
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