In my opinion, she is too young to take care of the pet dog ______.

Noise is unpleasant, _____ when you are trying to sleep．

 Furniture and flooring usually come to mind when we think of ways to use bamboo. Not many of us, ________, think of bamboo clothing.

 ----What do you think of the film we saw last night? ----I feel ______ that the film is well worth seeing once more.

_____it is 7 o’clock, we must go now.