一．单项选择（供15小题；每小题1分，满分15分）
( ) 1. — Mum, why can’t I have _________ new bike?
— Dear, you know, ________ money doesn’t grow on trees.
A. the; the B. a; / C. a; the D. /; the
（ ）2.The guide’s last words______us that we should bring raincoats or umbrellas.
A. recommended B. remembered C. replied D. reminded
( )3. When I got to the store, “iPhone 6 Plus” had been sold out. The salesmen didn’t know_____________.
A. when were they available（可得的） B. when will they be available
