1.There’s a man at the reception desk who seems very angry and I think he means______trouble.
        a.making
        b.to make
        c.to have made
        d.having made
        2.After the Arab states won independence , great emphasis was laid on expanding education,with girls as well as boys________to go to school.
        a.to be encouraged
        b.been encouraged
        c.being encouraged
        d.be encouraged
        3.I’d rather read than watch television ; the programs seem______all the time.
        a.to get worse
        b.to be getting worse
        c.to have got worse
        d.getting worse
        1._______ it or not, his discovery has created a stir in scientific circles.
        a.Believe
        b.To believe
        c.Believing
        d.Believed
        2.It seems oil_____form this pipe for some time. We’ll have to take the machine spart to put it right.
        a.had leaked
        b.is leaking
        c.leaked
        d.has been leaking
        3.The pressure _______ causes Americans to be energetic,but it also puts them unders a constant emotional strain.
        a.to compete
        b.competing
        c.to be competed
        d.having competed
        1.b
        mean to do sth. 将要做某事
        2.c
        “with + 名词 + 分词” 的结构，他们是被鼓励，所以要用分词的被动形式。
        3.b
        seem to do sth. 句尾的all the time 是进行时的标志，所以用不定式的进行式。
        1.a
        Believe it or not 是固定搭配，意思“信不信由你”。
        2.d
        句子中的时间状语for some time，表明可有两种选择，现在完成时和现在完成进行时。所以选d
        3.a
        空格中要求填入合适的动词形式修饰名词，动词不定式做定语。所以选a.