"مَكْتَب اَلْأُسْتاذ كَبير وَجَميل."
Translation:The professor's office is big and pretty.
I think you must understand ,people who make this course, that 'pretty' for an office is not right. Pretty is use for female quality, for the women or their belongings. Really for the rest the word NICE is use. Why don't you introduce it in your vocabulary?