—When ____your sister the computer? —Last month.A. does, buys B. did, buy C. did, buys
What will you be like ______?
I think there won’t be ______ schools in the future.
I think he will come back ______ three days.
We will use ______ and get ______ on the Internet.
---What is Mr Zhang doing? ---He is writing some English words ______ the blackboard ______ chalk.