1
|
Students
should do their homework.
It's important ______ for students to do their homework _____________.
|
2
|
Teachers
should speak clearly.
It's important
____________________________________________________________.
|
3
|
We don't have to hurry.
There's
plenty of time. It isn't necessary
____________________________________________________________.
|
4
|
A fish
can't live out of water for more than a few minutes.
It's impossible ____________________________________________________________.
|
5
|
Students have to budget their time
carefully.
It's
necessary ____________________________________________________________.
|
6
|
A child
usually can't sit still for a long time.
It's difficult ____________________________________________________________.
|
7
|
My family always eats turkey on
Thanksgiving Day.
It's
traditional ____________________________________________________________.
|
8
|
People can
rake trips to the moon.
Will it be possible ____________________________________________________________within
the next fifty years?
|
9
|
I usually can’t understand Mr. Alvarez.
It's hard ____________________________________________________________.
He talks too fast.
|
10
|
The guests
usually wait until the hostess begins to eat.
At a formal dinner party, it's customary
____________________________________________________________. After she
takes the first bite, the guests also start to eat.
|
11
|
The bride usually feed the groom the
first piece of wedding cake.
It's traditional
____________________________________________________________.
|
12
|
I can
understand our teacher.
It's easy____________________________________________________________.
|
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