try to understand ____ that prevents so manyAmericans from being as happy as one might expect, it seems to me that thereare two causes

In ______ Max began to learn Russian.

I can’t hear you．Would you please speak _______

Have you heard that Mo Yan was awarded the NobelPrize in Literature last year— _____ He has made a positive contribution to thatfield

Expensive restaurants are not_________ the best