It often rains ______ in the summer of Nanjing.

It was raining when the plane_________ （起飞)in London.

Take the umbrella with you______it rains.A．in caseB．unlessC．ifD．due to

They were caught in the forest, and ______ made matter worse was that it kept raining cats

During the summer vacation, kids are often seen hanging______in the streets.（2010-67)A．abo

More heavy rains______in summer than any other time of the year.A．happenedB．have happenedC

It s about 400mm rain in this area______a year.A．above allB．of allC．on averageD．for averag