The students ____(play) basketball energetically on the playground right now.
查看答案
The professor ____(explain) the questions to the students already.
I ____(try) to repair the car while you were watching TV.
The bridge ____(be built) by the time you come back from abroad.
She ____(tell) me that she would be very happy to have us in her home.
微信支付 
支付宝支付