A ________may be given ____means of flags, lights, and guns.
A: sign; by
B: signal; in
C: signal; by
D: sign; in
A: sign; by
B: signal; in
C: signal; by
D: sign; in
举一反三
- ________, the train started. A: The signal given B: After the signal was given C: Given the signal D: A and B
- _____, the train started. A: The signal given B: Giving the signal C: The signal being given D: The signal giving
- The fineness of a sculpture first lies in its ________. A: sign B: signal C: design D: signature
- Don't forget to put your ____ to your letter. A: signal B: sign C: signature
- Coughing and<br/>sneezing _____ the coming of a bad cold. A: sign B: signal C: express D: present