.Going on a trip to a far-away destination _________ be expensive and difficult, but it is very interesting.

______ about “the God Particle” that Jude decided tosearch for as much information as possible about it

His proposal is very _________. We do not need any explanation.[ ]

This is the most important gift _______ I have received from my parents.

In this section, we will briefly describe possible ways of reducing the costs and risks ______ in doing this.