[ Present Continuous Tense ]
They …………………………………………………………..for a bus.
A. Be waiting
B. Is waiting
C. Are waiting
D. Am waiting

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Vocabulary and Grammar › ViewYou need a passport to pass the _____ between Mexico and the United States.
A. edge
B. line
C. border
D. rim
Present Perfect Simple vs Continuous › View
We __________ (talk) about this for too long.
A. have talked
B. have been talking