_____ they believe enjoying a sports team is a good way ______ new friends, I would like to attend community activities to widen my social circle.

The celebration started at ten in themorning and____about two hours

The problem referred to at the class meeting, if ______________ in time, will make a bad effect on everyone in our class.

－Where is Maria－She was noticed the library just now.

It is necessary for us_______them every day.