For passengers traveling into the city, taxis and car services charge ________ 50 dollars.
When effectively _______, the feedback we share with students or employees can develop their awareness of their own learning.
We all can feel something unusual about Kate, but she just _________ let us know what it is.
I can’t imagine what air we would be breathing in if we __________ anything to stop air pollution.
Experts suggest that parents should let their child do tasks that he is physically and mentally capable of doing by himself, ______ will help to build a self-confident kid.
It’s recommended that our plan _____ until it was tested again.