In the city of London, you can see fantastic modern architectures and antique buildings ________ eachother, ________ a sharp contrast between modern and ancient architectural styles[ ]

It is the second time that I____ in Beijing

It was in New Zealand _______ Elizabeth met Mr. Smith.

_____in the mountains for a week,the two studentswere finally saved by the local police [ ]

________ is the school trip—________ May.