1)Others are good watch-dogs b___they bark loudly when a stranger arrives.(填词)

问题描述:

1)Others are good watch-dogs b___they bark loudly when a stranger arrives.(填词)
2)Feed it o___once a day.

1.because 因为
2.only 仅仅
不明白的再问哟,请及时采纳,多谢!