... earlier, ______ A. we would have missed the train B. we would catch the train C. we might have caught the train D. we will have got on the train 29 / ______ he began to make friends more easily. ... before registration closed. The end of the test 2 Choose the word, phrase, or clause (marked with A, B, C, or D) that best completes each of the sentences below. 28 / If we'd ... more than enough on the earth. Water covers about three-fourths of the Earth's surface. However, 97.4 percent of it is salt water. Three-fourths of the Earth's fresh water is frozen in...