study or studies

[betterin]

1. Tom should spend more time on his studies.
2. Tom should spend more time on his study.

Which sentence is correct?
Is Senten 2 acceptable?

[Casiopea]

Both are acceptable and meaningful, but they meaning different things. In 1. studies refers to school work, whereas in 2. study refers to a room in a house.

1. Tom should spend more time on his studies.
=> He should study more.

2. Tom should spend more time on his study.
=> He should clean up or finish building or designing his home office. Note, a study is a room in a house. Some people use it as a library of sorts, others use it as a home office.

All the best.

[betterin]

Does the following sentence make sense?

"Tom wants to improve his studies"

[Casiopea]

I'd say, improve his grades.