.The girl began to _____the piano when she was young.
| A．practise to play | B．practise playing |
| C．practise to be played | D．practise play |
According to the survey, two thirds of the area__________covered by trees now and 90% of the population__________contributions to the Greening Project in the city.
| A．is ; has made | B．are; have made |
| C．is; have made | D．are; has made |
He asked me__________with me.
| A．what the matter is | B．what the matter was |
| C．what is the matter | D．what was the matter |
It is time for class. Will you please get the blackboard__________?
| A．to clean | B．cleaning | C．cleaned | D．having cleaned |
This is the biggest lab__________we have ever built in our university.
| A．which | B．what | C．that | D．Where |
He is__________as a leader but he hasn’t__________in teaching.
| A．success; many experiences | B．a success; much experience |
| C．great success; an experience | D．a great success; any experiences |