"Check that the person can breathe." 本句中的that是否可以换成if或whether请说出回答的根据(如:某词典)

Check that the person can breathe.可否改为: Check whether the person can breathe or not . listen and check the noodies that the person orders Check the things that are in the passage It's said that he's had the machine (check)check应该用to check 还是 checked The pers I never forget(英语作文） listen and check the noodles that the person orders.中的that the person pers是什么意思? Too many vulnerable childfree adults are being ruthlessly(无情地)manipulated into parenthood by their parents , who think that happiness among older people depends on having a grandchild to spoil. We need an organization to help beat down the pers check the prices check politics at the Please check the highlighted check with the ticket 用词的正确形式填空 it is said that he is had the machine （ ）【check】 please check that your disk is not full and you have access to the destinati You may cancel the disk check,but it is strongly recommended that you continue什么意思 翻译that only leaves us 15 minutes to go through the customs and check our baggage when i got to the check-out,i realized that i ___(not bring) my purse piease check that you have read the terms and condi tions 是什么意思?