将下列各句改成一般疑问句并且给出简短的肯定和否定回答1.HisnameisDavid.2.TheyareformEngland.3.Tom'sfatherisdoctor.4.Thedesksareveryheavy.5.Maryisdoingherhomeworknow.

Question

将下列各句改成一般疑问句并且给出简短的肯定和否定回答
1.His name is David.
2.They are form England.
3.Tom's father is doctor.
4.The desks are very heavy.
5.Mary is doing her homework now.

Answer 1

1.Is his name David?-Yes,it is./ No,it isn't.
2.Are they from England?-Yes,they are./ No,they aren't.
3.Is Tom's father a doctor?-Yes,he is./ No,he isn't.
4.Are the desks very heavy?-Yes,they are./ No,they aren't.
5.Is Mary doing her homework now?-Yes,she is./ No,she isn't.