_____ you receive my e-mail informing you of my absence, expect me on Friday at about 6 p.m.
A.Unless B.Until C.While D.Although
As we know, it will still be some years before all the metro lines in Suzhou _____ into operation.
A.will be put B.are put C.will have been put D.are being put
Patients should fight a mental battle against their disease bravely rather than_____ them.
A.subscribe to B.contribute to C.submit to D.apply to
_____ the station in India, which has the most female commercial pilots around the world, Chinese airlines are struggling with an acute female pilot shortage.
A.In contrast to B.On account of C.With regard to D.In response to
(2018·北京) In today’s information age, the loss of data _________ cause serious problems for a company.
A.need B.should
C.can D.must
---Have you worked out your plan?
---We have got a general idea of what we want, but nothing _____ at the moment.
A.ambiguous B.permanent C.concrete D.ambitious
