31. _____his being late again,he lost his job and had to stay at home.
The growing speed of a plant is influenced by a number of factors, ______ are beyond our control.
______ Chief Engineer, as his family had expected, made his father happy and proud.
Storm chasing is so dangerous that some chasers are often hurt in accidents ______ by driving in a heavy rain.
Believe it or not, crying is a way you can imagine ______ pressure.
All the clothes donated by the citizens need cleaning thoroughly before being sent to the earth-stricken area, ______ ?