___to be checked and refuelled. ( )
A: All the aircrafts has
B: All the aircrafts have
C: All the aircraft has
D: All aircraft must
A: All the aircrafts has
B: All the aircrafts have
C: All the aircraft has
D: All aircraft must
举一反三
- The inspector has not checked all the necessary items.
- The football team has done well this year, ____________ have trained very hard. A: All players B: All their players C: All its players D: All of players
- All the company’s aircraft have been grounded, after a ________ in the engine cooling system was discovered.
- All ________ gone to Beijing. A: is B: are C: have D: has
- It is essential that all these figures ______ twice. A: must be checked B: be checked C: is checked D: will be checked