- — Alvin，are you coming with us?—I'd love to，but something unexpected ________.A．has come upB．was coming upC．had ...
- In the last few years thousands of films ________ all over the world.A．have producedB．have been producedC．are prod...
- It’s reported that in the past 50 years around 80 percent of Beijing’s courtyard houses ______.A．had wiped outB．hav...
- When to go for the on-salary holiday yet?A．are not decidedB．have not been decidedC．is not being decidedD．has not ...
- The world's first flying car has been ________ for sale at ￡800,000 by Courtesy Aircraft of the US.A．taken upB．put...
- It's said that they ________ a better life ever since they moved to the US.A．had enjoyedB．have been enjoyingC．were...
- —Look! Someone ________ the floor.—Well, it wasn't me. I went shopping just now.A．had sweptB．has sweptC．was sweepi...
- —What's the matter with Philips?—Something must have happened to him. He left home three hours ago, but ________ at t...
- Kate ________ on her new novel, which is supposed to come out next month.A．was workingB．had workedC．will be workin...
- Up to now, our society ________ with limited living space and a shortage of natural resources.A．has been challengedB...
- The house is dirty because it ________ since they moved out.A．doesn't cleanB．isn't cleanedC．hasn't cleanedD．hasn'...
- I know little about the accident because not much ______ about it up to now.A．has saidB．has been saidC．had saidD．...
- Barrack Obama __________ President of the United States since 2010.A．became aB．has become aC．has turnedD．has been
- The famous reporter, who is said to go back to America next month, _____in China for almost twenty years.A．livedB．w...
- Minister Bill De Blasio in office fewer than 48 hours when he came face to face with his biggest challenge in his lif...