In the last decade, disasters havebecome increasingly common. It’s high time that we ______these issues moreseriously.

They say there’s a new clothes store nearby.— Yes, and it________ for no more than two weeks.

Luckily the man missed the high-speed train to Wenzhou, or he have been killed in the accident. [ ]

Some insects ______ the colour of their surroundingsto protect themselves.

It is because he ___________ science that I __________ what he says.