-How soom will he come back?- ____ tow days.(before/after/in/for)

问题描述:

-How soom will he come back?- ____ tow days.(before/after/in/for)
There will ____ a concert in our city.
have
has
is
be

IN
BE
IN TWO DAYS 只在两天内,指时间长,AFTER一般指时间点
第二个是固定的THERE BE句型