Charles was alone at home, with looking after him.
A. someone B. anyone C. not one D. no one
It is often that human beings are naturally equipped to speak.
A. said B. to say C. saying D. being said
exist
A. experience B. examine C. excite D. explode
determine
A. remind B. minister C. smile D. tidy
seize
A. neighbour B. weigh C. eight D. receive
medicine
A. twice B. medical C. perfect D. clinic