The Japanese people keep up cheerful spirits ________ the world that they can get over the crisis caused by the terrible tsunami（海啸）.

．________ bricks，workers press clay into blocks and bake them to the requisite hardness in a kiln.

What impressed me in Greece was that the oceans _______ the islands were deep blue and many cities lay on the bay.

   The old man came, _____a big dog.

      several times in the exam,John didnt have much confidence in himself.