My new book will be published by this publisher.

We are planning to go to the amusement park this weekend.

Students from all over the country will participate in this contest.

This product is popular nationwide.

He grew up in a colony in Africa.

I want to travel to many countries.

Kaku is my best friend.

He is proficient in calculating quadrature in astronomy.

He is struggling to understand the ablative case in Latin.

The sum of one angle of this triangle and its complementary angle is 90 degrees.