____I was walking to school, I saw a boy crying in the street.

____I was walking to school, I saw a boy crying in the street.

#57531

Until

While

Before

After

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 I will wait here ____ the concert is over.

#58456

when

until

Keep off the drugs（毒品）,         you and your family will be in great danger?

#58326

and

but

Why was the house on fire? _______ lightning hit it.

#57989

Because

Since　

Because of

The story was written in______ easy English_____ even the seven-year-old child could understand it.

#56560

very, that

so, that

too, to

such, that

—How can I learn English well?—You will learn it well ________ you practice speaking it often.

#56660

unless

as for

as soon as

as long as