1 . —Can I come today or tomorrow?
—_________is OK. I’m busy today and tomorrow.

A．Either

B．Neither

C．Each

D．None

2 . When entering the room, I saw that the TV ________.

A．fixed

B．had fixed

C．was being fixed

D．was fixing

3 . It is difficult to command a new skill, but once ________, it will benefit you for the rest of your life.

A．obtaining

B．obtained

C．to obtain

D．is obtained

4 . Van Gogh was famous for his Sunflower, which was painted in three ________ of yellow.

A．ports

B．shores

C．shades

D．stairs

5 . New evidence has ________ the first witness’s account.

A．conducted

B．contacted

C．considered

D．confirmed

6 . A dozen parks ___ in recent years, ________ as both tourism destinations and natural oxygen bars.

A．was built; to serve	B．have been built; serving
C．built; serving	D．have built; served

7 . If ________ promptly and properly, some cancers are highly curable.

A．treated

B．being approached

C．aiding

D．having been solved

8 . He still ________ regularly to the magazine “New Scientist” after retiring.

A．hesitated

B．contributed

C．adjusted

D．offered

9 . With rich practical experience, he is ________ handling various emergencies.

A．capable of

B．annoyed with

C．concerned about

D．sensitive to

10 . After cleaning the window, he ________ the room to see if there was anything else he could do.

A．looked up

B．looked over

C．looked across

D．looked through