Lab Activities
Lab Activity 39: Present and Past Tense for Irregular Verbs
 
 
Objective: To use the present and past tenses of irregular verbs.

Step 3: Insert the correct form of the verb in the blank.


      1. Over the past five years, I have ________ many adventurous people. 

  know
  knew
  knowed
  known


      2. Many of these people ________ probably explorers in a former life. 

  are
  is
  were
  been


      3. To be an explorer, you ________ to have a sense of adventure. 

  has
  have
  had
  have had


      4. A lot of intellectual curiosity ________ also necessary. 

  is
  are
  am
  were


      5. Some explorers, though, ________ been exploiters as well. 

  has
  have
  had
  are


      6. Some ________ confused the sense of personal discovery with ownership. 

  has
  have
  had
  are


      7. It ________ important that the explorer respect the land and cultures that he or she explores. 

  is
  are
  was
  were


      8. Much has been ________ about explorers and their discoveries. 

  write
  wrote
  writes
  written


      9. Explorers learn much in their travels, but that ________ mean they know everything. 

  doesn't
  don't
  didn't
  do not


      10. What an explorer ________ when he or she discovers a new place reveals much about the explorer's values. 

  does
  do
  did
  done







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