Mr. Smith gradually _____ a knowledge of the subject.
A、attainedD
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---You could always put the decision off a little bit longer.
---_____ If I leave it much longer I might miss my chance.
Althoughhedoesn'tlikethatlaw,hewill_____withit.
Too many hotels have been built and this has _____ prices, making holidays cheaper.
__________theconvenienceofdigitalpayment,manyseniorcitizensstartedtousesmartphones.
A university is an educational institution which _____ degrees and carries out research.
