Things are changing all the time. IT's difficult to keep-.all these changes A, out of B, up with C, back from D, on about

Question

Things are changing all the time. IT's difficult to keep.....all these changes  A, out of      B, up with       C, back from       D, on about

thaophuobg · Answer

Đ&aacute;p &aacute;n : B.up with   ( keep up with smt : theo kịp với c&aacute;i g&igrave; )   VD : I can't keep up with the speech.

cattuong · Answer

b  .up with (keep up with = theo kịp với)

Things are changing all the time. IT’s difficult to keep-.all these changes A, out of B, up with C, back from D, on about