句子考查（共8小题，71~74每小题2分, 75~78每小题3分, 满分20分）
根据下列各个句子的要求，完成、改写或翻译句子。
71. It looks as if he were enjoying himself at the party.（改写）
He ______ ______ ______ _______ himself at the party.
72. We don’t permit the students to smoke. （改写）
The students ______ not ______ _______ _______.
73. The doctors took immediate measures in case the disease spread quickly.（改写）
The doctors took immediate measures ______ ______ the disease ______ ______ quickly.
74. Three boys were playing basketball on the playground. (改写)
______ ______ three boys ______ ______ on the playground.
75. The baby calmed down only after his mother came back.（改写）
Only ______________________________________________.
76. My mother told me something. It surprised me greatly.（合并为含主语从句的复合句）
__________________________________________________.
77. He told us that his confidence and courage helped him succeed.（强调划线部分）
He told us it _____________________________________.
78. 4月14日发生在玉树的大地震使我们感到极大震惊。（汉译英，含定语从句）