Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
| A．which | B．what | C．that | D．when |
相关试题
Good luck to you, and _____ all your wishes come true.
| A．can | B．may | C．must | D．should |
He ran as fast as he could _____ to catch the bus.
| A．hope | B．to hope | C．hoping | D．hoped |
The system has been designed to give students quick and easy_____to the digital resources of the library.
| A．access | B．passage | C．way | D．approach |
I’m trying to break the _______ of getting up too late.
| A．tradition | B．convenience | C．habit | D．leisure |
推荐套卷
粤公网安备 44130202000953号