Please fill in the blank
” The University is open ….. overseas students, primarily from American universities, who may enroll in study abroad programs during the summer months. “
Here we can use both for/to (but for is better in this particular case)
University is open for/to overseas students.
But the meanings will be slightly different:
for: we are accepting overseas students right now, we are ready and we are waiting
to: in general – our school accepts student from overseas (that means not only students from one particular country, but also from different countries)