When he suddenly ________ up the subject of genetic engineering, there was an embarrassedsilence.
A、tookB
暂无解析
When workers are organized in trade unions, employers find it hard to lay them ________.
When he suddenly ________ up the subject of genetic engineering, there was an embarrassedsilence.
Shehadclearlyno________ofdoinganywork,althoughshewasverywellpaid.
GeneralMotors,oneoftheworld'slargestautomanufacturers,isexpandingits________inthiscountry.
WhenIcamethroughthecustomsattheairport,Ihadtopay________onaclockIhadbought.
