Many people attend various public lectures, chiefly ______ themselves familiar with the latest development of different fields.

A. that B. whether C. so D. because

A. who B. whoever C. whomever D. whichever

A. another B. the others C. the rest D. the other

A. the better he gets result

B. the better result he gets

C. he gets better result

D. does he get better result

A. were killed B. to be killed

C. killing D. to have been killed

A) diagramB) label

C) signal D) mark

A) capacityB) potential

C) possession D) impact

A) behindB) between

C) along D) among

A) arbitraryB) aggressive

C) ambitious D) abundant

A) has been insisting

B) had insisted

C) would insist

D) insisted