My Professor has been teaching the same course. ....... 15 years now, and he still loves it.

I actually ... to study Physics when I was in high school.

The lady ------------- wrote this book lives in Riyadh.

Which sentence has the CORRECT WORD ORDER?

She always likes to visit London in the summer; London is......... favorite city.

I arrived to work at 9 a.m. and then I ..................