Once new difficulties _________ in your work, it’s always important to use your brains.
Betty and Arthur ____ on separate holidays in a few days’ time.
— Is there anything you want to know?— I just wonder ____ that makes Jim so excited.
Margie shows a very positive attitude ____ her work.
His death in a car accident was _____ and we all got _____ at the news.
I’ll spend my holiday in Qinghai, _____ lies in the north of China.