She is not very ____ about the idea of going camping. I think she will stay at home reading.
A. optimistic B. enthusiastic C. confused D. curious
The prize of the game show is $30,000 and an all expenses ____ vacation to China.
A. paying B. paid C. to be paid D. being paid
The woman ____ herself a writer has never written any books.
A. calling B. called C. calls D. to call
___ the room, the nurse found the tape-recorder ___.
A. Entering; stealing B. Entering; gone
C. To have entered; being stolen D. Having entered; to be stolen
____ I understood very little French, I couldn’t follow their conversation.
A. Although B. Unless C. Since D. Before
____ to light for a long time, the potatoes turned green.
A. Introduced to B. Exposed to C. Linked to D. Connected to