________ with many other people, teachers have a relatively stable income.

Believe it or not，my sister and I are twins.—Oh，you must have had the case________you were taken for your sister.

I couldn’t wait_______ the box as soon as I received the gift.

There on the shore you can see a steam powered ship covered with dirt _____, waiting to be taken apart. [ ]

Which of the following “ed” has a different pronunciation from the other three