The fax machine,______ its attachments,costs only 100 dollarsIt is really a good bargain.[ ]

_______ does he look ——He looks short and strong.

He told me that his aim was ________ a job around hereto support himself while he studied in the university these years

Radium salts，which have been found to______ in bones，give rise to bone cancer.

55. I can’t see John anywhere. Where _____ he have gone?