(A) be just the formality -- (B) be not essential (A) be on the way (B) -- pass by (A) (A) be worse -- prefer (B) to (A) (A) cast on sth. to (B) -- (B) get sth. from (A) (A) get sth. done -- someone do for (A) (A) is far more important -- should (A) before (B) (A) ride with (B) -- (B) give (A) a ride (A) send (B) to do sth. for (A) -- (A) can use (B) s sth. later (A) tell (B) a day ahead of time what (A) need. -- (A) request materials a day in advance. (A) will miss (B) -- (B) won t be able to go someplace (A) wouldn t have gone to someplace -- (B) doubt (A) d leave for someplace