The twin brothers stand under the tree, ______ and say nothing.
| A．puzzled | B．puzzling | C．being puzzling | D．being puzzled |
For Linda, to be admitted to such a good university is the beginning of a new life, ________ she thought she would never see.
| A．what | B．that |
| C．one | D．it |
Once a schedule is made, by strictly _________ it, you can avoid putting off till tomorrow what should be done.
| A．arranging | B．observing |
| C．measuring | D．presenting |
—You have just 15 minutes to get to the airport.
—All right, I guess I can ________.
| A．do it | B．make it |
| C．finish it | D．get it |
Let’s make good use of our energy and_________ wasting water, electricity, paper and so on.
| A．keep on | B．result in |
| C．be opposed to | D．appeal to |
He needs to improve his skills if he __________ the gold medal at the 2016 Olympics.
| A．win | B．is winning |
| C．will win | D．is to win |