—Everyone in my class passed the exam.
—Oh, really? It ________ difficult.
| A．can’t have been | B．needn’t have been |
| C．must be | D．mightn’t be |
相关试题
.
. ______, so she had to be sent to the hospital as soon as possible.
| A．Being ill | B．Her mother was ill |
| C．Her mother being ill | D．Having been ill |
.
With drink and food _____, the prison had to walk out of the cave where he was hiding.
| A．running out | B．using up |
C．to use up | D．run out |
.
Do you mind me _______ your lecture?
| A．joining | B．attending | C．joining in | D．taking part in |
.
. He has never travelled out of his hometown, _______ to a foreign country.
| A．leave out | B．let out | C．let alone | D．leave alone |
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