. —How’s your tour around the North Lake? Is it beautiful?
—It __________ be, but it is now heavily polluted.
| A．will | B．would |
| C．should | D．must |
【2015·福建】To my delight, I from hundreds of applicants to attend the opening ceremony.
| A．was chosen | B．was being chosen |
| C．would choose | D．had chosen |
【2015·福建】—Where is Peter? I can't find him anywhere.
—He went to the library after breakfast and his essay there ever since.
| A．wrote | B．had written | C．has been writing | D．is writing |
【2015·陕西】Mary really hard on his book and thinks he’ll have finished it by Friday.
| A．worked | B．has been working | C．had worked | D．has worked |
【2015·陕西】At college, Barack Obama didn’t know that he the first black president of the United States of America.
| A．was to become | B．becomes | C．is to become | D．became |
【2015·四川】More expressways in Sichuan soon to promote the local economy.
| A．are being built | B．will be built |
| C．have been built | D．had been built |