Once you have established the daily ration of drinking water in a survival situation，how s

Once you _____ the knack of it, you will have no further difficulty.

A.shall have

B.had had

C.are having

D.have

Once you have finished the design, you may have a whole week.

A.off

B.down

C.in D.up

You the Inception, since I remember once you discussed its main plot with Cathy.

A、could have watched

B、should have watched

C、must have watched

You’ll have more chances of promotion ______ you work hard.

A、since

B、while

C、as

D、once

A.pro

B.profession

C.professional

D.professor

A.since

B.because

C.as

D.once

A.can... do

B.would ... do

C.have ... done

D.will ... do

A.A.informs

B.B.convinces

C.C.reminds

D.D.warps

A.recalls

B.reminds

C.remembers

D.reviews

A.gaps

B.tips

C.offers

D.potlucks