The volunteer spoke as__________ as she could to make the visitors understand her．

He _____ a song last night.

.It was_________Asimov was eleven years old________ his talent for writing became obvious.

Look! Who is the man in the picture（图片）?——I know. ______ Zhou Xingchi.

Can I go to the movie, Mum?— Certainly. But you _______ be back by ten o’clock.