(B)1. I study math by ____ lots of exercises.
A. did B. doing C. do
(A)2. ____ do you study for tests? I work with my friends.
A. How B. Who C. When
(B)3. What _____ reading aloud to practice pronunciation?
A. of B. about C. around
(A)4. Many students asked the teacher _____ the time of the test.
A. for B. to C. about
