A scientist’s attempt to produce the world’s first gene-edited babies _____ are immune to HIV has sparked controversy in academia and the public.
A. as B. who
C. whom D. whose
____ clear goals, we become strangely loyal to performing daily doings until we become slaves of them.
A. On top of B. In the silence of
C. On account of D. In the absence of
Computer-controlled robots are taking over jobs in many industries, which used to be done _______.
A. artificially B. manually
C. comprehensively D. gradually
Her doctor indicated that even adding a(n) _____ amount of daily exercise would dramatically improve her health.
A. modest B. equal
C. considerable D. exact
Last December China _____ 100 Chinese and 10 foreigners for their outstanding contributions to the country’s reform and opening-up.
A. distinguished B. sponsored
C. acknowledged D. evaluated
The health of garden plants depends on the soil _____ --the proper balance of mineral pieces, organic matter, air and water.
A. construction B. conservation
C. corporation D. composition.
