_______ a small number of Australians are bitten by spiders each year, most recover without any medical treatment

I think English is __________ unimportant subject.— I don’t think so. It is __________ useful tool when we talk with foreigners.

下列各句中，没有语病的一句是

— What’s the time? — Oh, I forgot to have my watch ______ [ ]

(2013·陕西，20)It remains to be seen ________ the newly formed committee’s policy can be put into practice.