第一题、单项选择题（每题1分,
1、The theory of continental drift can ＿＿＿＿＿＿＿＿＿＿ the occurrence of earthquakes.
A、clear up B、make use of
C、make clear D、give an account for
2、His car broke down when he was only ＿＿＿＿＿＿＿＿＿ home.
A、a half way B、half a way
C、halfway to D、halfway
3、The way to learn a language is to practice ＿＿＿＿＿＿＿＿ it as often as possible.
A、to speak B、speak
C、speaking D、being spoken
4、Neither Derek nor I ＿＿＿＿＿＿＿＿ to blame Alice for not telling the truth.
A、to be B、being
C、am D、are
5、Not until 1868 ＿＿＿＿＿＿＿＿＿＿ made the capital of the state of Georgia.
A、was Atlanta B、when Atlanta was
C、only Atlanta D、was when Atlanta