— A computer is very popular and helpful .— I think so. It _______ in many different fields.
----I fell off the bike and hurt my leg yesterday. ----_______.Be careful next time
---Why are you so _______,Amy? ---I thought I lost my purse, but I didn’t. I found it in my study!
Little Tom made a lot of mistakes ___________his carelessness.
Of the three paper flowers, the red one is the_________.
When the pop star ________, his fans all got very excited.