The machine ______, the next step was how to operate it.
A: having been installed
B: had been installed
C: having being installed
D: has been installed
A: having been installed
B: had been installed
C: having being installed
D: has been installed
举一反三
- The machine ______, the next step was how to operate it. A: having been installed B: B．had been installed C: having being installed D: has been installed
- They are going to have the serviceman ________ an air-conditioner in the office next week. A: install B: to install C: to be installed D: installed
- The decision ______ , the next problem was how to make a good plan. A: having made B: had made C: having been made D: had been made
- The decision _______, the next problem was how to make a good plan. A: having made B: having been making C: having been made D: been made
- ____for a long time, the fields are all dried up.A. There has been no rain B. Having no rain C. There having been no rain D. There being no rain A: A. There has been no rain B: B. Having no rain C: C. There having been no rain D: D. There being no rain