He has a/an ______ sense of foreboding that his son died in the front line.
A. furious B. severe
C. ethical D. acute
The doctor tried to _________ me that my mother would be fine.
A. whistle B. emerge
C. reassure D. bend
The authorities feared that concerns about air pollution might ______ with smoggy weather continuing.
A. edit B. recover
C. erupt D. install
The happiness from helping others is a kind of inner relief that can _______ our heart.
A. smooth B. mend
C. choke D. soothe
With most of his time ____ in playing basketball, he failed in the exam.
A. to waste B. wasted
C. wasting D. having wasted
(2017·北京)Many airlines now allow passengers to print their boarding passes online ________ their valuable time.
A. save B. saving
C. to save D. saved