Nero is crying. Do you know _______ she’s so upset –Well, she lost her pet cat which was just like her family member.

Would you mind me here一 . The seat is for Mr. Wu.

You may _____he will come here to give us a hand. [ ]

The school year is divided into two semesters, __________is September through December.

What’s the matter with Tom He seems ____ sad. —His pet dog died.