1.The new factory is expected to come online------may. {in / by}

which answer is correct and why??

2.We parked the car-------the fence. {beside / behind}

which answer is correct and why ??

3.The train travelled-------the track. {along / across}

which answer is correct and why??

1. The new factory is expected to come online in May. {in / by}

because ‘in’ is  used before months/seasons.

2. We parked the car beside the fence. {beside / behind}

because ‘beside’ indicates location. It means ‘next to’.

3. The train travelled across the track. {along / across}

because ‘across’ means from one end to another.