Some English scientists are identifying problems ____ technology in the 21st century. If solved, the solutions could change the world.
#97172
A
facing
B
faced
C
being faced
D
having faced
推荐题目
— What’s the matter with you?— Oh, once again I had my best friend ___, because the expression on his face ____ his anger.
#95814
A
hurting; betraying
B
to be hurt; to betrayed
C
hurt; betrayed
D
being hurt; betraying
Under the environment of fierce competition, the only way John could imagine ________ stress was to get tougher by making greater efforts.
#88777
A
handling
B
to handle
C
handled
D
having handled
— Is Alice still performing? — I’m afraid not. She is said the stage already as she has gone abroad for further study.
#89806
A
to leave
B
to have left
C
to be left
D
to have been left
in the early 20th century, the school keeps on inspiring children’s love of art.
#91131
A
To found
B
Founding
C
Founded
D
Having founded