His father told me that he __________ for the United States three days __________

―Are you disappointed with the result of the experiment?―No. ______, I’m pleased with it.

－I’m very tired these days because of studying for physics.－Why not____muisc.It can make you_____.

I phoned you at six yesterday afternoon, but nobody answered.—-I _______ a walk with my parents near the river.

He is afraid to face the problems he’ll have _____the exam. [ ]