I will _________(推荐）you as his secretary.
过马路时要注意车辆。
When crossing the street, look __________ __________ cars.
修高速公路和停车场占用了我们大量的土地。
Building highways and parking lots has __________ much of our land.
You have been sitting on my hat and now it is badly out of s.
At one time Nigeria（尼日利亚）was a British __________（殖民地）.
He pwhen war would break out.