In this institution, a medal, together with a prize of a certain sum of money, ________ does best in science and technology every two years.
The earliest influences upon children will have the strongest effects ________their future.
Our headmaster spoke at the parents meeting for one hour without ________ his notes.
I ate __________ sandwich while I was waiting for _______ 20:08 train.
Throughout the week, the boy _____most of the work in the manager’s office.
Our country is developing at an amazing speed, which is _____makes me feel so proud.