correction 

they must make their double bed slowly at university for a year
how must they make their double bed at university for a year 

they made their double bed at university yesterday
 where did they make their double bed slowly yesterday

they are going to make their double bed slowly at university next year
when are they going  to make their double bed slowly at university

they have mede their double bed slowly at university since 2000
 how long have they made double bed slowly at university

they make  their double bed slowly at university today
what does they make at university today
which bed does they make at university today 

she 

she must make their double bed slowly at university for a year
how must she make their double bed at university for a year

she is going to make their double bed slowly at university next year
when is she going  to make their double bed slowly at university

she made their double bed at university yesterday
 where did she make their double bed slowly yesterday

she has mede their double bed slowly at university since 2000
 how long has she made double bed slowly at university

she makes  their double bed slowly at university today
what does she make at university today
which bed does she make at university today