1, i will give you a ring ..... we get back from our vacation
A, while B when C until D as long as
2,...... the plane took off, he fastened his seat belt and put his seat in an upright poisition
A, after B when C before D while
3, My instructors says that ........i have flown another ten hours, he will let me fly solo
A, But B, And C when, D. before
4, .......the boa constrictor has eaten the goat, he will become very lethargic
A, for B, after, C when D, so
5, you wont hear the sound of the explosion,.........you have seen the flash
A, till then B, until before C, till before D, till after
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