Tony ________ for the company as an engineer for two decades. Now he teaches mechanics in Peking University.
A．has worked B．worked C．is working D．had worked
Modern teaching equipment as well as some computers ________ to the village school last week.
A．were sent B．was sent C．has been sent D．had been sent
It's on the festival occasions________ the family get together________ he misses his late father.
A．where; that B．which; when C．when; that D．that; when
Shenzhou-VIII has docked with Tiangong-I successfully, ________ the start of the establishment of China’s own space station．
A．marked B．to mark C．marking D．having marked
A fantastic idea occurred to him ________ he could use a plastic bottle, ________ cut off, as a container to grow young plants in.
A．which; whose top B．that; the top of which
C．that; with its top D．whether; whose top
2188 is a lucky number, ________ I suppose, that will bring us luck and fortune and will be loved by us all.
A．it B．one C．which D．that
