The flowers in the garden smell ___.
. – Jack, when shall we go to visit Mr. Smith? – It’s up to him. We’ll go to see him whenever _______.
. He spoke very slowly, but he still didn’t get his meaning _______.
. ----I’m going downtown. ----Come on, _______.
. This bag is twice ______ weight of that one. You’d better carry ______ lighter one of the two.
. A clean environment can help the city bid for the Olympics, which ______ will promote its economic development.