1. Scientists have invented new devices to help people live longer New devices 2. I don’t have enough time, so I can’t go on

1. Scientists have invented new devices to help people live longer
New devices
2. I don’t have enough time, so I can’t go on holiday this summer
If
3. Vy ate a lot last night, so she had a stomachache
Because
4. He began to study English three years ago
He has



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