- Since the world heritage list was first created in 1972, many more sites _____ it.A. have added up toB. are added toC...
- Every year a flood of farmers arrive in Shenzhen for the money-making jobs they _____ before leaving their hometowns....
- — Peter, would you like a beer to go with your meal?— Sure, it _____.A. orderedB. was orderedC. has been orderedD. ha...
- A big step _____ to strengthen China's health care systems since we launched an effort in 2008.A. has been takenB. is...
- This is one of the best films _____.A. that have been shown this yearB. that have shownC. that has been shown this ye...
- All _____ done now.A. haveB. hasC. has beenD. have been
- Do you know many man-made satellites _____ space by our scientists since the middle of the twentieth century?A. have ...
- — _____ Lin Tao has failed in the exam.— Yes, he is always very lazy.A. I've been toldB. I've toldC. I'm toldD. I told
- In the last few years thousands of films _____ all over the world.A. have producedB. have been producedC. are produci...
- I like these English songs and they _____ many times on the radio.A. taughtB. have taughtC. are taughtD. have been ta...
- — Why does the Lake smell terrible?— Because large quantities of water _____.A. have pollutedB. is being pollutedC. h...
- A lot of tents, drinking water and food _____ to the homeless earthquake survivors in the past several weeks.A. are s...
- Members do not need to repeat the information which _____ before.A. has submittedB. had been submittedC. has been sub...
- Two thirds of the subway construction ____ so far and people will enjoy a fast and convenient trip under the city ear...
- — Can you tell me what time the flight to Detroit leaves?— I'm sorry, but it ____ due to the fog.A. has been canceled...