Scientists still wonder whether cloning will help or harm us and where it ____ us.
#103545
A
has led
B
is leading
C
had led
D
would lead
推荐题目
The lady insisted that the young man _____her wallet and _____to the police station at once.
#100183
A
had stolen; be sent
B
should steal; sent
C
has stolen; sending
D
steal; had been sent
-- How can I apply for an online course? -- Just fill out this form and we _______ what we can do four you.
#102945
A
see
B
are seeing
C
have seen
D
will see
一Did he notice you enter the classroom?一I don’t think so．He _______ to the radio with his eyes shut·
#101731
A
1istened
B
was listening
C
has listened
D
had listened
—Has anyone taught him how to do it?—Sure. Lots of advice________, but he hasn’t made a decision.
#100150
A
gave
B
was given
C
have been given
D
has been given
I first met your sister ten years ago, when she ____at a supermarket as a salesgirl.
#102409
A
has worked
B
had worked
C
was working
D
had been working