______ bears’ number has increased, their conflicts with local people have increased too.
A. If B. With C. As D. While
Having mastered the technologies of manned spacecraft, China became the third country in the world ______ manned spaceflight independently.
A. develop B. to develop C. developing D. developed
______ sweet, this type of flower sells the best in the market.
A. Smelt B. Being smelt C. To smell D. Smelling
The most widely accepted theory about the beginning of drama is based on the concept ______ drama evolved from ritual.
A. which B. that C. when D. as
The growing speed of a plant is influenced by a number of factors, ______ are beyond our control.
A. most of them B. most of what C. most of which D. most of that
______ Chief Engineer, as his family had expected, made his father happy and proud.
A. Mike being appointed B. Mike’s appointed
C. Mike appointing D. Mike’s being appointed
