A、消毒隔离防感染
B、加强保温
C、精心喂养
D、以上都是
Whenyou're_____acrisis,itoftenhelpstotalktosomeone.
A、goingthrough
B、goinginfor
C、goingafter
D、goingover
A、eitherRussiannor
B、neitherRussianor
C、noRussiannor
D、neitherRussiannor
Wehavetowaitforthebus,______?
A、havewe
B、haven’twe
C、dowe
D、don’twe
Itwasnotuntilshehadfinishedallherwork_____.
A、didshereturn
B、thatshereturned
C、whenshereturned
D、thatdidshereturn