1. Physics -------------- one of my favorite subjects.
A) be B) to be C) is D) are

2. There are some books on the table, which -------------- about fish.
A) does B) do C) is D) are

3. A third of the students -------------- passed the test.
A) are B) have C) has D) is

4. The bus comes here -------------- 30 minutes.
A) each B) another C) every D) all