He had to retire(退休) early ______ poor health.
A．a(chǎn)s a resultB．because
C．soD．because of
D
連詞考查。Because與because of都表示原因，但because必須引導句子，而because of后跟名詞。
練習冊系列答案
相關(guān)習題

科目：初中英語 來源：不詳 題型：單選題

I don’t speak French _____ Japanese. I only speak Chinese.
A. or                   B. and                C. but

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

Mary spends a lot of money on clothes _____ her family is not rich.
A．becauseB．thoughC．ifD．so

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

—Tom, you look tired this morning. What’s wrong?
—I was so busy that I didn’t go to bed _____ 12 o’clock last night.
A．untilB．whenC．thoughD．unless

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

We can easily become unhappy_____ we work out our problems in our daily life.
A．a(chǎn)fter B．if C．until D．unless

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

My grandparents like to live in a house _______ is not very big but bright and comfortable.
A．thatB．whoC．whatD．whose

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

I have been skating _______ nine o’clock.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

There are many tall green trees on       side of the street.
A. either,         B. both        Call             D. every

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

I still remember my first teacher ________ we haven’t seen each other for
a long time.
A．itB．untilC．thoughD．because

查看答案和解析>>

同步練習冊答案