This is a difficult and stressful job, but one ______ you can really help people.
---Harry, we want to know your view about the reform being carried out in our school. ---OK. I ________ to that.
Tom hid himself behind the door, _________ he could hear the steps of his mother clearly.
Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
---Excuse me, dad, but I’m going to the club to meet my friends in the football team. ---OK. _______ .
Nowhere else in such a small town, I think, ___ a book as good as this one.