TOEFL Questions

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In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
 
Many lost dogs ______ been given back to their owners

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
 
1. Cybercrime cases pose various kinds of
2. Challenges which requires strengthening of
3. The institutional mechanism.
4. No error

 In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Altruism

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

Making a loud and confused noise

Select the word with the correct spelling.

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Dank