The children ran away from the orchard( 果园 ) they saw the guard.
A. the moment
B. after
C. before
D. as
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No sooner had I arrived home it began to rain.
A. when
B. while
C. as
D. than
Several weeks had gone by I realized the painting was missing.
A. as
B. before
C. since
D. when
It long before we the result of the experiment.
A. will not be; will know
B. is; will know
C. will not be; know
D. is; know
got into the roomthe telephone rang.
A. He hardly had; then
B. Hardly had he; when
C. He had not; then
D. Not had he; when