．We are taught that a business letter should be written in a formal style ___

．We are taught that a business letter should be written in a formal style ____ in a personal one．

#34803

less than

other than

better than

rather than

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 Judy is popular with everyone because she says what she means, ________ she means what she says.

#30705

and

but

—Do you think we can get there on time?—Yes,_________ the bus does not break down.

#34459

even if

unless

until

so long as

 How long do you think it will be ________ the computer company puts forward a new product?

#33737

before

since

until

that

—Will you come?—________you promise not to invite Mary.

#32512

As if

If only

Only if

Even if

 I have a tight budget for the trip, so I'm not going to fly _     the airlines lower ticket prices.

#31637

once

after

unless

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