All electrical _______ need to be checked regularly.
A: customised
B: advertise
C: stuff
D: devices
E: extend
A: customised
B: advertise
C: stuff
D: devices
E: extend
举一反三
- It is essential that all these figures ______ twice. A: must be checked B: be checked C: is checked D: will be checked
- It is essential that all these figures___twice. A: be checked B: are been checked C: being checked D: to be checked
- It is essential that all these figures () twice. A: being checked B: are checked C: checked D: be checked
- The fire alarms are checked ______ to ensure that they work properly in case of an emergency. A: recently B: almost C: every D: regularly
- Those of us who are over fifty years old should get__________ blood pressure checked regularly.