With the boy __________ the way, we had no difficulty in finding his house.
Jenny nearly missed the flight _____doing too much shopping.B. on top ofC. in front ofD. in need of
IF you leave the club , you will not be back in.
At the railway station, the mother waved goodbye to her daughter until the train was .
The coach asked his staff to the large group of journalists, waiting for him to announce his training plan.
The human race has already paid a heavy price for its slow to environment threats.