--- Jack, what about the lecture? --- It is the most inspiring lecture that I _________ since I came to this university.
We are going to visit an old temple _____ the 12th century.
I’ll lend you my bike_____ you take care of it.
It was when she was sleeping in her bedroom __________ a thief broke into the house.
Future agriculture should depend on high technology __________ traditional methods.
If you _______nature and do things at the wrong time of year, you will have to do more work and the results will not be so good.