1. Keep trying! Don't                (错过) a good chance.
2. There are                (至少) 200 people going to the meeting.
3. The shark mainly                 (以……为食) fish and other sea animals.
4. I often                Mary                (错把……当作) Kate. Because they are twins.
5. —What do you think of "Harry Potter"?    —I think it is just                (一般).