Bob, dinner is ready. Please wash your hands ________ you eat.( )
until
after
while
before
-Excuse me, look at the sign NO PHOTOS! -Sorry, I _________.
The girl who _______ by car has been taken to the hospital.
—What did Jane say? —She said she _________ at school that day.
— Are you going anywhere? — I ________ about visiting my cousin, but I have changed my mind.
----Have you ever been to HK, Jim? ---- Yes, I ______ there for two weeks with my parents last summer.