---Have you ever been here before?---No. this is the first time that I to the Great Wall. A comes B have been C came D had been
It is often recommended that children _____ chances to get close to nature.
— Do you think it wise for Chinese mothers to try to do everything for their children? — No, that’s ______ they are mistaken.
______ on his past mistakes, Ted realized that he had stayed around the wrong people.
______ the houses were knocked down in the earthquake.
We planned to climb the mountain today, but in such ______ bad weather, it seems out of ______ question.