In the face of the big fire in October in California, many people in the fire-stricken areas moved out ________ .
A. to escape burning
B. to escape being burned
C. escaping burned
D. escaping from burning
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They saw the bird flap its wings and ________ away.
A. fly
B. flied
C. flew
D. flying
I insisted that the textbook ________ to be bought at once.
A. refers to
B. refer
C. referred
D. referring
________ , ice will be changed into water.
A. Heating
B. Heated
C. If heating
D. To be heated
The foreigner seemed ________ his way.
A. to be losing
B. to have missed
C. to have lost
D. missed
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