Select the most appropriate option to fill in the blank.

Luck does not always favour us, so we must always depend _______ our own efforts for success.

Question

Select the most appropriate option to fill in the blank.

Luck does not always favour us, so we must always depend _______ our own efforts for success.

Accepted Answer

**Solution:**

1. The phrase "depend upon" is the correct collocation used to express reliance or trust on something or someone.

2. In the given sentence, the meaning is that success should be based on our own efforts rather than luck, so the preposition that correctly shows this dependence is "upon".

3. The other options do not fit grammatically:
   - "depend in" is not a standard phrase.
   - "depend for" does not convey the intended meaning.
   - "depend at" is incorrect usage.

**Complete sentence:**

"Luck does not always favour us, so we must always depend **upon** our own efforts for success."

**Answer:** upon

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