Who ________ a theory about black holes?

---How about your journey to Mount Emei?
---Everything was wonderful except that our car ________ twice on the way.

We tried to find a table for seven, but they were all ________.

Can you ______ your sister from that group of girls?

Jane is very popular because she is easy to ______.

Once she has        , nothing can change it.

What transport do you prefer      .

If you       these mark, you will get a total of 90.

To test eggs , ___them in a bowl of water: if they float they are bad; if they sink they are good.

The band ________ in about 1970, but happily they reunited in the mid-1980s.