Daming didn’t take a photo in the museum. I didn’t,          .

．—How is your English going? —      .

---Does Liu Hua ever guess the meaning of English words?,---He ______ guesses the meaning, of new words. He uses his dictionary all the time.  

They are ______________ exciting that they can jump up.

Please don’t drop litter _______, you should throw it into the dustbin _______.