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
______ the sound on the step, the boy rushed out to see if his mother had come back.
#91651
A
To hear
B
Hearing
C
Heard
D
Hear
—Do you know the tall man ______ to Mr King over there?—Sorry, I don’t know him.
#94423
A
to speak
B
speaking
C
is speaking
D
has spoken
______ at the crossing and you will see a tall white building.
#96000
A
Turn right
B
Turning right
C
Turned right
D
Being turn right
The story is moving, and the questions, I suppose, are not so difficult as they appear ______.
#91432
A
to answer
B
to be answered
C
answering
D
being answered
--- I regret ________ you that John has been fired. --- I can hardly believe my ears. He is such a fine worker.
#94368
A
telling
B
having told
C
to tell
D
to have told