Countries in Southeast Asia have ________ become familiar with Chinese brands, but there is still a long way to go.
Sweet memories __________ as I looked at the pictures __________ were taken at the beach last summer.
When the expression first came into being, people refused to use it but __________ they began to accept it.
Willie's wife never gives him pocket money until he __________ clearly how he will spend it.
Can you explain __________ the sun goes down in the west?
What an unforgettable experience ! I'll write it down __________ it is still fresh in my memory.