______leaves the room last should turn off the lights.
A. Whoever
B. Anyone
C. Who
D. Whomever
To ______ an autumn harvest, local governments are trying their best to fight the flood.
A. assure
B. ensure
C. insure
D. sure
So little ______about physics that the lecture was completely beyond me.
A. 1 knew
B. did I know
C. 1 had known
D. had 1 known
To be flank, 1 really prefer the former program to the______.
A. late
B. later
C. lately
D. latter