【2013四川遂宁】―Must I return the book this week? ― No, you . You can it for 20 days. A. mustn’t, keep B. needn’t, borrow C. needn’t, keep
Look! Who ___________ on the blackboard?
It’s ______ today. I think it’s going to ______.
----Hi. How’s it going? -----______.
There is ______ elephant in the zoo.______ elephant is from Africa.
Where _____ your pen pal _____ from ?