问题
单项选择题
His mother looks so young. ______ fact, she is ______.
A．At; the forty
B．In; the forties
C．As; forty
D．In; her forties
答案
参考答案：D
解析：[分析] 测试两个知识点。in fact“实际上”为固定搭配；在表示“．．．年龄”时，数词要用复数形式，数词之前要用物主代词，介词用“in”。如：She looks very old，but in fact，she’s in her thirties．她看起来很老，实际上她才30岁。