---Did you return where you had come from after college?---No.I was lucky enough ______ abroad for further study.
In front of our house ____ we used to swim.
---Don’t worry, Mum. The doctor said it was only the flu. ---____! I’ll tell Dad there’s nothing serious.
The analysis shows that plastics, particularly those that __________ fast, are contributing to the climate change.
Mr. Putin told CNN in an interview that the United States should not ________ in Russia’s internal affairs.
In taking a space walk, Chinese astronauts are__________ going where Russian and Americans went decades before.