Many new workers______and in six month they will be sent to build a new railway.
There is no hard evidence ____ aliens took Justin that night.
My mother suggested that she _____ me to the hospital, where I received good medical treatment.
Mr Ma is the person _____ we learned how to write with brushes.
The _______ boy made the police and his family _______.
He did not go to school yesterday ___________the heavy rain.