The __________ look on his face showed that he hadn't expected it.
I got __________ from my classmates when climbing the hill.
The teacher __________ his students __________ five groups.
The police are trying to find out the __________ of the woman killed in the traffic accident.
—Who knows where Terry is?—The reason __________ Terry is absent is __________ his father had an accident.
__________ you have finished this programme, can you talk about our plan for holiday trip now?