Do you know which library _______,the students'?

Do you know which library _______,the students'? _______ _______ do you go to the library? Do you know which library_,the students'?A,did he go B,he we Do you know which is the largest desert?Do you know which th which city do you _______? Which is the way to the zoo?Do you know Do you know the girl _______ on the stone? Do you know the girl at the desk?-Yes,_______ Which of the following statements do you agree _______? （ ）Do you know _______? Do you know which country has the largest p________? Do you know which c_____ is the biggest in China?