In the past few years, a great many teachers have found very important to teach their students how to learn.
| A．this | B．that | C．one | D．it |
【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 |
【2015·天津】Jane can’t attend the meeting at 3 o’clock this afternoon because she ______ a class at that time.
| A．will teach | B．would teach |
| C．has taught | D．will be teaching |
【2015·天津】Despite the previous rounds of talks, no agreement______so far by the two sides.
| A．has been reached | B．was reached |
| C．will reach | D．will have reached |
【2015·浙江】Albert Einstein was born in 1879. As a child, few people guessed that he a famous scientist whose theories would change the world.
| A．has been | B．had been | C．was going to be | D．was |