If Jenny .......................... that her friend Kate was in the same course, she would have asked to borrow her book…

I'm sorry I didn't come to the dinner last night. I......work late with my project.

We have almost completed the course. Only .................classes are left.

The weather… ................... warm these days.

Lucy saw her brother ..................... she went home during her holiday.

Which of the underlined words in the sentence is INCORRECT? To become a teacher and to helping children learn English is…