We all consider ______ significant that we should cancel the order immediately.
| A．how | B．which | C．this | D．it |
We can never expect ________ bluer sky unless we create ________ less polluted world.
| A．a；a | B．a；the | C．the；a | D．the；the |
What ________ pity that you couldn't be there to receive ________ prize!
| A．a；a | B．the；a | C．a；the | D．the；the |
Now that we've discussed our problem，are people happy with the decisions ________？
| A．taking | B．take | C．taken | D．to take |
The children all turned ________ the famous actress as she entered the classroom.
| A．looked at | B．to look at |
| C．to looking at | D．look at |
The government plans to bring in new laws ________ parents to take more responsibility for the education of their children.
| A．forced | B．forcing |
| C．to be forced | D．having forced |