The concert by Lang Lang was so well ______ that all the tickets had been sold out on the first three days last month.

 I had planned to invite Tom to the party to increase the atmosphere, but it turned out that his arrival ____ the atmosphere.

 He stood up and ________ a smile to cover up his disappointment.

Heads from different countries gathered in Amsterdam and President Xi jinping _____ a speech on nuclear safety.

Dark clouds _______ the sunlight. It seemed as if it was going to rain.