i don't know him ___ ask for help .

i don't know him ___ ask for help .
A.well enough B.good enough C.enough surely D.enough well
John ____ told his teacher all about the matter.
A maybe B probably C possibly D perhaps
Although knocked down by a car,he managed to ____ to his feet.
A stand B rise C run D struggle
a person's ____ body temperature is about 37C.
A.ordinary B normal C common D usual