Betty is ______ a word puzzle.A. solving B. solve C. working
________ are all good students in schools.
The film is very boring. ________ people like it
—Is it serious, doctor?—Don’t worry. ________ serious.
—Is this postcard ________?—Yes, It’s ________. It’s from ________ friend.
— Which do you prefer, a bottle of orange juice or a bottle of milk?—________, thanks. I’d like a cup of tea.