1.The boy did his homework____.
[选D,首先,修饰行为动词“did his homework”要用副词carefully,所以排除形容词careful的选项A,C,其次,谓语动词用过去式,所以后面的动词也用过去式could]
A.as careful as possible B.as carefully as he can
C.as careful as he could D.as carefully as he could
2.Who made the girl ____?
[选B,首先,根据make sb.do sth.排除A,D,其次,根据keep doing sth.(一直做……),排除C]
A.kept,cry B.keep crying C.keep cry D.kept to cry
3.I have never seen____birds before.
[选C,首先要弄清so和such的主要用法：so + adj./ adv.而such + n.,因为本题后面birds是个名词,根据这点排除so的选项A,B.其次,D项有问题,要改为such beautiful birds才对.]
A.so B.so beautiful C.such D.beautiful such
4.____heavy the box is!
[选B,本题考察感叹句的两种句型：1.What + n.2.How + adj./adv.由于本题的heavy并没有修饰the box,所以是形容词单独使用,因此用How,排除A,C,又由于不可能How a,故排除D]
A.What B How C.What a D.How a
5.His words ____us.We all felt ____.
[选C,第一个surprised做动词,表示“使吃惊”,第二个surprised做形容词,表示“感到吃惊的”,主语是“某人”,符合题意.而surprising做形容词,表示“令人惊讶的”,修饰“某物”,与题意不符.]
A.surprised,surprising B.surprising,surprising
C.surprised,surprised