________ watching a movie in an IMAX cinema costs over 100 yuan, the IMAX cinemas are always full of audience.
There were some cases ______ women employees were fired when they were pregnant.
The teacher spoke of some writers and some books ________ we need to know.
Look at ______I bought yesterday.
Is that town _______you lived in as a child?
The soldiers stick to ________ the gate against attack.