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【单选题】
____ she was invited to the hall made her very happy.

That
If
When
Because
【单选题】
I feel very helpless to see the ____telephone bill.

including
increasing
declaring
decreasing
【单选题】
I am very ____sitting on this old, broken chair.

comfortably
uncomfortably
commonly
uncommonly
【单选题】
— _________________________— Thanks! Its very kind of you to invite me.

How are you?
Happy Mid-Autumn Festival!
Do you like this festival?
Would you like something to have?
【单选题】
Encouraging the elderly people to participate games is very important.

at
in
with
for
【单选题】
He set up in business ____ his own and was very successful

in
of
on
by
【单选题】
_______ Tom ________ Mary can help me, for they are very busy.

Either;or
Neither;nor
Both;and
whether;or
【单选题】
_______ Tom ________ Mary can help me, for they are very busy.

Either;or
Neither;nor
Both;and
whether;or
【多选题】
_____________ its very hot in the summer, the other seasons are beautiful.

Even though
Even if
Although
Though
【单选题】
This is a very difficult operation. It is essential that you __________ for emergency.

are to be prepared
would prepared
be prepared
must be prepared