15. _____ U2, the Irish rock band from Dublin perform a concert in Beijing, tell me in advance.
We ______ last night, but we went to the concert instead.
“ ______ as often as you can,” our English teacher often tells us, “ you will make rapid progress.”
. For miles around us there was nothing but a desert, without a single plant or tree ______.
I go _____ to the stadium when there’s a game, but usually I watch it on TV.
.In the time ____ takes to drink a cup of coffee, customers can get a pair of special-made shoes in this store.