1.我发现养真正的狗作为宠物是困难的,因为它们大部分都需要特殊关爱.Ifoundit----------------------realdogs-------petsbecausemostofthem----------------------.2.There’ssomeoneknockingatthedoor.There’s

Question

1.我发现养真正的狗作为宠物是困难的,因为它们大部分都需要特殊关爱.
I found it ------ -------- -------- real dogs ------- pets because most of them ------ -------- --------.
2.There’s someone knocking at the door.
There’s ------- ---------- on the door.
3.You must finish your homework before you go to bed.
------- --------- that you ---------- your homework before you go to bed.

Answer 1

i found it hard to keep real dogs as pets because most of them need special care.
there's knocking sound on the door
be sure that you finish ...