Only in recent years ______ begun to realize that wild dogs, kept within bounds, often do more good than harm.

Only in recent years ______ begun to realize that wild dogs, kept within bounds, often do more good than harm.

#82839

people have

since people have

have people

people who have

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 If       unsolved, the problem of food safety may lead to more serious results.

#80315

having left

to leave

left

leaving

—Do you know Jack quarreled with Tom? —I don't know,      .

#81400

so don't I care

nor do I care

I don't care neither

I don't care also

19 “Who are making so much noise in the garden?” “_______ the children.”

#84648

It is

They are

That is

There are

Only after reaching eighteen       join the army.

#84047

have you; you can

have you; can you

you have; you can

you have; can you

So difficult __________ it to adapt to the academic requirements of a Western university that I determined to take a preparation course.

#83316

I have felt

have I felt

did I feel

I did feel

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