Peter sat on the train seat, with his eyes ____ on the fields outside the window.
| A．fixing | B．fixed | C．to fix | D．having fixed |
I didn’t find his office. If only I______his address!
| A．remember | B．remembered | C．had remembered | D．would remember |
I'm lucky because my job has_____hours, and I can come and go pretty much as I want.
| A．changing | B．flexible | C．basic | D．moveable |
Don’t be too general. Please give a ______suggestion on how to deal with this difficulty.
| A．concrete | B．abstract | C．complete | D．fragrant |
---Which color do you prefer, red or black?
---Red. For red_____a sense of energy and strength.
| A．delivers | B．conveys | C．contributes | D．concentrates |
He ______to swim across the Channel, but they failed because of the terrible weather.
| A．succeeded | B．managed | C．attempted | D．thought |