171. She works seven days a week, and six of _____ until one o’clock at night.
The young dancers looked so charming in their beautiful clothes that we took ________ pictures of them.
----–May I take this seat? ----- ________. It is occupied.
______ the plan means we must start from the very beginning.
She prepared a great meal to ______ the help of her neighbors in finding her lost little daughter.
.I recommended _____ an English-English dictionary, which I thought would be of great help to her studies.