When a customer withdraws money from the bank, it is required to leave his signature. But how can we be sure it is_______?
| A．absolute | B．alternative | C．academic | D．authentic |
相关试题
Never before in greater need of technical experts than it is today.
| A．has Hunan been | B．Hunan has been |
| C．was Hunan | D．Hunan was |
It is only people know the importance of science science can really serve the people.
| A．that； when | B．when； that | C．then； that | D．that； then |
Sor
ry， I didn’t hear you. I to the music.
| A．just listened | B．was just listening | C．has just listened | D．had just listened |
The fact has worried many scientists the earth is becoming warmer and warmer these years.
| A．what | B．which | C．th at |
D．though |
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