—Which tie would you prefer,the black tie or the red one,Madam?—I’ll take ________ to have a change sometimes.
You can’t imagine ________ when they received these nice Christmas presents.
No one can be sure _______ in a million years.
________ the decision must be made immediately requires questioning.
_______caused the accident is still a complete mystery.
________ we can’t get seems better than _______ we have.