________ he still _________ in his office? —No. He __________ back home.

Excuse me, I want to have my bike fixed, but I can’t find a repair shop.— I know ________ nearby. Come on, I’ll show you.

There is _______ “u” and _______ “f” in the word “unfamiliar”.

_______ of them has a dictionary and they can look up words in it.

Taiwan is a part of China, and it’s _____ the southeast of our country. [ ]