Question

It rained very heavily, ________we had to stay at home to watch TV.

A．so

B．but

C．though

D．or

Answer 1

A

考查连词。so 因此；but但是；though   虽然，尽管；or或者，否则。句意：雨下得非常大，因此我们不得不呆在家看电视。故选A。