I seldom eat sweet snacks because there ______ too much sugar in them.

 E-mail, as well as telephones, ____  an important part in daily communication.

It is the only one of the most exciting movies ________ been shown this year.

We noticed that each animal and each tree in the park _____ being taken good care of.

I took mathematics and physics because I think that ________ very important for me to make further research in this field.