Earthworms occur ______ adequate moisture and food and the necessary soil conditions are f

The boy was not ______ to leave class without an adequate reason.A．emittedB．admittedC．perm

The two ferry disasters occurred____________. 查看材料A

She is ______ at every aspect of the job; all she lacks is imagination.A．sufficientB．adequ

______she had forgotten to take her notebook.A．That occurred to herB．She occurred thatC．

The meeting will be put off______no adequate preparations are made.A．in no caseB．in the ca

______adequate precautions are taken, there is no risk involved in the operation.A．Althoug