A.have traveled | B.travel | C.would travel | D.are traveling |
A.pass | B.sleep | C.spare | D.remain |
A.join; in; add | B.add; to; add to | C.put; to; add up | D.add; in; add up to |
A.came up | B.were come up | C.brought up | D.was brought up |
A.operate on | B.operation for | C.operation to | D.operation on |
A.died out | B.died from | C.died away | D.died off |
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