B1 - Present Simple or Present Continuous?

Some kinds of fish ______________ (contain) high levels of dangerous metals. 

Loud music can be really detrimental to the ears. Some people ______________ (not realize) its harmful effects.

A package holiday ______________ (cost) less than going on holiday on your own.

Technicians report that they ______________ (have) difficulty about the new computer system at the moment.

No wine for me! I ______________ (take) antibiotics for an ear infection.

Don’t worry about your dog! The vet ______________ (feel) his legs to check that nothing is broken right now.

The National Theatre ______________ (think) of putting a new production of Hamlet.

We ______________ (see) the bank manager this afternoon.  We have an appointment.

That girl ______________ (look) like your sister.

I ______________ (not understand) you. Could you speak more slowly?