There are five pairs, but I'm at a loss which _____ to buy.

1. A.
   to be chosen
2. B.
   to choose from
3. C.
   to choose
4. D.
   for choosing

There are five pairs _______, but I'm at a loss which to buy.

A. to be chosen B. to choose from C.tochoose D.for choosing

There are five pairs _________, but I’m at a loss which to buy.

A. to be chosen      B. to choose from   C. to choose    D. for choosing

There are five pairs       , but I’m at a loss which to buy.

  A. to be chosen          B. to choose from           C. to choose                              D. for choosing