(·成都七中考前模拟)If you decided to study in America you have no choice but your English gr

问题补充：

(·成都七中考前模拟)If you decided to study in America, you have no choice but your English greatly.

A. improves

B. improving

C. to improve

D. improve

答案：

A. improves

B. improving

(答案→)C. to improve

D. improve

解析：选C考查非谓语动词作介词but的宾语。句意：如果你打算去美国学习，除了显著提高英语水平外别无选择。but后需跟不定式作宾语，口诀为“前do后不to”。