someone____at the door while Tom was having his supper.
someone____at the door while Tom was having his supper.
Someone---at the door when Tom was having his supper?
Just at that time,I heard someone____at the door
when I was having supper,the postman arrived
He was having dinner____a unknown woman knocked at the door.
The Greens ()(have)supper when there was a knock at the door
tom went upstairs again to ()the door was looked .
3.Tom and his father are having the breakfast.(划线Tom and his
the boy having finished his homework was playing the compute
There was a knock at the door when we () () (have) supper
The door was locked while the window was opened.这样表达有错吗
Tom fell into the lake while he was boating .