Thereisadeadlock(僵局)inthediscussionwhenneithersidegives________totheother.
B
译文：由于双方都不让步，讨论陷人了僵局。本题考查短语搭配， give way to 意思为“让路、让步” 。
The other timing system belongs in our internal clocks，which，left ________，would tie the body to a 25-hour rhythm.
Thebasicunitinthestudyofmorphologyis______.
Ifpaymentisnotreceived,legalactionwillbeouronly________.