29. That's all for the party. Let's _____.
This new-type machine____________ little room.
The cattle _______ grazing on the grass.
Such a problem is____difficult for a primary school student ___.
— What does the sign over there read? —“No person __________ smoke or carry a lighted cigarette,cigar or pipe in this area.”
In order to in a short time, the actress ate a large amount of food much fat and protein(蛋白质).