--How about your English?--I found ________ hard to learn it well.
Don’t promise anything ________ you are one hundred percent sure.
--- What did the teacher say to you just now? --- She asked me _______________.
He has finished writing his new book and it will __________soon.
--- Excuse me sir, where is Room 301? --- Just a minute. I’ll ask Bob ________ you to your room.
--- Are you coming to Jeff’s party? --- I’m not sure. I _______ go to the concert instead