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GRAMMAR & STRUCTURE — Exercises
Complex Sentences

 
  Answer the following questions to check your knowledge of complex sentences.

 
 
1. Which sentence is a complex sentence?
  The very experienced doctors performed the operation.
  The doctors who performed the operation are very experienced.
  The doctors performed the operation; they are very experienced.
     
2. Which sentence is a complex sentence?
  After the old woman sold her house, she moved into an apartment.
  The old woman sold her house and moved into an apartment.
  The old woman sold her house, moved into an apartment, and bought a car.
     
3. Which sentence is a complex sentence?
  The students had finished their project; therefore, they were free to go to the beach.
  Because the students had finished their project, they were free to go to the beach.
  The students finished their project and went to the beach.
     
4. Which sentence has the correct subject-verb agreement?
  That bank, which already has offices in many different locations, are expanding again.
  That bank, which already has offices in many different locations, is expanding again.
     
5. Which sentence has the correct subject-verb agreement?
  Sarah, one of many exchange students, enjoy all the new things that she can experience by living in a foreign country.
  Sarah, one of many exchange students, enjoys all the new things that she can experience by living in a foreign country.
     
6. Which sentence has the correct verb tenses?
  Susan started to cross the empty street when suddenly a car appears speeding towards her.
  Susan started to cross the empty street when suddenly a car appeared speeding towards her.
     
7. Which sentence has the correct verb tenses?
  Janet looked everywhere for a wedding dress until she finally found one just three days before her wedding.
  Janet looked everywhere for a wedding dress until she finally finds one just three days before her wedding.
     
8. Which sentence has the correct verb tenses?
  Even though David started a new job only five months ago, he already wants to change jobs again.
  Even though David started a new job only five months ago, he already wanted to change jobs again.
     
9. Which sentence has the correct punctuation?
  If you want to pass your English course you will have to work hard.
  If you want to pass your English course, you will have to work hard.
     
10. Which sentence has the correct punctuation?
  We can't go to the movie until Tom arrives.
  We can't go to the movie, until Tom arrives.