-- Did you read a book about customs last week?-- Yes, I found ______ very useful to know the customs of foreign countries.
#55792
A
that
B
this
C
it’s
D
it
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I think____________ necessary _____________ to take more exercise.
#55774
A
it, for Jim and me
B
it’s, to Jim and me
C
that , for Jim and I
D
that’s, to Jim and me
 --How much ________the red socks? --________6 dollars.
#55799
A
is; It’s
B
are; They’re
C
is; They’re
D
are; It’s