你想知道别人生日什么时候,你该怎么问:A. What are you?B.What’s your favourite food?C. When is your birthday?
The mother pig has three _________. A. piglets B. puppies C. kittens
What are ___________over there? A. that B. these C. those
The ducks and ducklings _______swim. A. doing B. are C. can
How do you do? --______________________? A.How do you do? B. Thank you. C. I’m fine, thanks.
Do you often borrow books ________the library? A.in B. from C. at