Because vs Because Of Exercises
B1-B2 Level
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A very common mistake is mixing the two patterns — writing "because of I was ill" (wrong) or "because the rain" without a verb (wrong). Remember: if the next word is a subject pronoun (I, he, she, it, they, we) or a noun followed by a verb, use because. If the next word is "the," "my," "a," or a noun without a verb, use because of. You can also use "because of" with a gerund: "Because of being late, he missed the introduction." This distinction between the conjunction and the preposition is one of the most frequently tested grammar points in B1-B2 English examinations.
Quick Rule
because + clause (subject + verb) | because of + noun / noun phrase / gerund
- 1.We cancelled the picnic because it was raining. (conjunction + clause)
- 2.We cancelled the picnic because of the rain. (preposition + noun)
- 3.She couldn't attend because she had a prior commitment. (negative + clause)
- 4.Several trains were delayed because of heavy snow across the region. (preposition + noun phrase)
- 5.He was promoted because of his excellent work this year. (preposition + possessive noun phrase)
All 20 questions
Complete the sentences with 'because' or 'because of'. Remember: 'because' is followed by a subject + verb, while 'because of' is followed by a noun or gerund only.
We cancelled the picnic _____ it was raining.
The flight was delayed _____ bad weather.
They moved to Canada _____ they wanted a better life.
She was tired _____ working all night.
He succeeded _____ working hard and never giving up.
I was late _____ the traffic was terrible.
The match was postponed _____ heavy rain.
She stayed home _____ she wasn't feeling well.
We chose this hotel _____ it had excellent reviews.
I was late _____ the terrible traffic.
The concert was cancelled _____ the singer lost her voice.
Many people stay indoors _____ the extreme heat.
He couldn't attend the meeting _____ he was sick.
We cancelled the picnic _____ the rain.
The restaurant closed early _____ a power outage.
I couldn't sleep _____ my neighbours were having a party.
We chose this hotel _____ its excellent reviews.
The school was closed _____ there was too much snow.
He got the job _____ his experience and qualifications.
She missed the bus _____ she overslept.
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