The policeman told the injured bicycle rider that he would have to lie _____ he had fallen until the arrival of an ambulance. a. because b. where c. after d. when
Atomic energy has _____ many uses, either as fuel or as radiation, _____ it is almost impossible to imagine all the great changes it will bring into our lives. a. such…as b. such…that c. too…then d. so…that
A foreigner's first impression of the U.S. is likely to be ________ everyone is in a hurry ---- often under pressure. a. what b. that c. which d. one in which