It was ____ loud music that we couldn’t hear ourselves speak.

The rain was heavy and _____ the land was flooded.

The members of the board are discussing the problem right now; it will _____ have been solved by the end of next week．

A good “teammate” doesn’t ____ make a good partner. Those who put their partners in this category were most _____ to describe their relationship as slightly unhappy. 

Maria _____ missed the first train so as to travel on the same one as John.