tolong bantu jawab soal b inggris berikut

The traffic is very terrible we are going to be late. By the time we have to get to the airport. Bob's plane arrived. And he will wondering where we are.

This morning I came to class at 09:00. Right now it is 10:00 And I'm still in the class. I have been sitting at this desk for an hour. By 9:30, I have been sitting here for half an hour. By 11:00, I have been sitting here for two hours.