You must pay import ____on certain goods brought into this country.
D
【句意】带入本国的某些商品要交进口税。
【难点】duties意为“税，关税”;bill意为“帐单”;fee意为“费”。
Nowherebutintheremotestregionofthecountry____findaplacetosettledown.
Heconcludedhisspeechwitharemarkthatfailure____themotherofsuccess.
The____ofAIDShasledtoanexpansioninresearchseekingacure.
Peopleinsomeareasdon’thavetopayfortheir______.