1. 单项选择: 1) it's already 10 o'clock i wonder how it _______ that she was two hours late on such a short trip. a. came over b. came out c: came about d. came up 2) the better __________ you have of words, the better chance you have of saying exactly what you mean. a. demand b. comment c. command d. performance 3) the teacher usually writes his _________ on the margin of the composition. a. comments b. words c. review d. command 4) it is surprising that such an innocent-looking man should have ________ such a crime. a. confirmed b. clarified c. committed d. conveyed 5) letterboxes are much more _______ in the uk than in the us, where most people have a mailbox instead. a. common b. normal c. ordinary d. usual
