_______ the teacher’s instruction in the lab_____ important.
| A．Following, are | B．Following, is | C．Followed by, are | D．To follow, are |
I am wondering ____ he expects will win the gold medal in Men's Single．
| A．whom | B．who | C．which | D．what |
The witness who appeared in court ____ to speak out the truth instead of covering it up．
| A．encouraged | B．has been encouraging |
| C．was encouraging | D．had been encouraged |
Several years ago they found in England a tomb of a man ____ from around 2,300 B．C．
A．dated B．dating C．dates D．to date
—Why did you leave the water running in the sink?
—My goodness! I guess I ____ to turn off the tap．
| A．forgot | B．have forgotten | C．forget | D．had forgottten |
Washington, a state in the United States, was named _____ one of the greatest American presidents．
| A．in favor of | B．by means of ． | C．in honour of | D．in spite of |