English vocabulary exercise from EnglishLearner.com - Advanced level

Word formation - Set 4

Find the missing words

Read the five sentences below. The same base word is missing from each sentence, but in different forms. Please note that in most cases several words can correctly complete one of the sentences, but there is only one base word that you can use in all five sentences. Enter the correct form of this word to complete each sentence. Click here to see a sample of how this kind of exercise works.
When you have entered all the answers, click on the "Check answers" button. If you make a mistake, please try again until you get all the answers right. Click on "Give me a letter" to get the next correct letter (but you'll lose points).
Click on the "Next exercise" button to go to the next set of sentences.
1) It is difficult to a person who continually lies.
2) Living conditions while working tree-planting weren't great, but they were certainly .
3) If you take antibiotics too often, your body builds up a to them, and they are no longer effective.
4) My neighbours aren't very of children; they're always complaining that they are making too much noise, but they're just being normal, happy kids.
5) The level of noise in this city has become . It's driving me mad.

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Exercise written by Elek Mathe - EnglishLearner.com - last modified on January 15, 2013