________ requires us to do two things quickly. First, ________ the main topic; and second, to write down the important details.
A．To take good notes; recognizing
B．Taken good notes; recognizing
C．Taking good notes; recognizing
D．Taking good notes; to recognize
The academicturnedTVcelebrity is reported ________ at a Kunqu Opera performance staged at Peking University.
A．to boo(喝倒彩) B．to being booed
C．to have been booed D．to be booed
It's almost common for a video game nowadays to have multiple endings ________ the players' choices during gameplay.
A．depends on B．depending on
C．depended on D．to depend on
________ copies of Mo Yan's works will be on sale after his talk at the Press Conference.
A．Signing B．Sign
C．Signed D．To sign
Ben received an invitation to dinner, and with his work ________， he accepted it happily.
A．finished B．finishing
C．having finished D．was finished
All reference books ________， he didn't find the key to the question.
A．being searched B．searched
C．to be searched D．were searched
