Who killed Santa?

It's almost that time of the year. Wendy (a)   (be) a good girl all year, so she expected a splendid gift from Santa.

She decided she (a)   (give) Santa a surprise by exchanging gift with him.

Wendy also promises her friends that she ​_______ (stay) up late to meet the real Santa Clause.

• is to stay

• is staying

• will stay

• will have stayed

She thinks Santa (a)   (like) the teddy bear she bought.

The night before Christmas, Wendy (a)   (clean) her room to get ready for Santa's visit.

She also (a)   (ask) her mom to prepare cookies for Santa in case he got hungry after his long journey.

However, unusual things ​ (a)   (happen) before Wendy got her presents.

Wendy (a)   (oversleep) and missed the chance to meet Santa.

On Christmas morning. When Wendy (a)   (brush) her teeth, her mom ​ ​ screamed in the living room.

Her mom said that she ______ (mop) the floor and when she came close to the Christmas tree, she found Santa's dead body lying there.

• had been mopping

• mopping

• mopped

• is mopping