答案 ACB解释。DCD。 to be sleepingpretend 不是+to do不定式么？pretend的主要用法（也就是考点）如下：1）pretend to do sth该结构有如下三种形式：pretend to do sth（一般式）；prentend to be doing sth（进行式）；prentnd to have done sth（完成式）如：I pretend to be sleeping when my parents came in.He pretended to be friendly with me. He pretended to have been abroad.2) pretend + that从句如：He pretended that he was innocent. 3）adj.假装/假想的如：Don't be afraid of a pretend problem.