The computer was used in teaching. As a result, not only _______, but students became more interested in the lessons.
| A．saved was teachers’ energy | B．was teachers’ energy saved |
| C．teachers’ energy was saved | D．was saved teachers’ energy |
I called Bruce many times yesterday, but I couldn’t get through. His brother ____ on the phone all the time.
| A．was to talk | B．was talking | C．would be talking | D．had talked |
Although Fleming discovered Penicillin, it was over a decade ______ someone else turned it into the great drug of the 20th century.
| A．before | B．since | C．when | D．as |
—Look! Here is a message on my mobile phone, asking me to send money to....
—Don’t believe it! It’s a trick. More than one person _____ by such tricks so far.
| A．had been cheated | B．was cheated | C．have been cheated | D．has been cheated |
_____ what could happen, he did whatever he liked to and nobody could stop him.
| A．In case of | B．Regardless of | C．As a result of | D．In addition to |
—How did you like the cycling trip last weekend?
—__________. I will do it again if I am free.
| A．Around the lake | B．Just by chance | C．Very exciting | D．None of my business |