What kind of pen you (to use ) at the moment ? when i got to work i (to switch) on my computer ? when i looked out of the window yesterday morning it (to rain) ? my father (to teach) me how to swim when i (to be ) 6 years old this time tomorrow i (to watch) an interesting film on tv we (to know)that harvey ( to diskover) the blood circulation many years ago . i saw her when i (to drive) home. he (to give) me an interesting book last week . i (to read ) it during the whole week .i (to bring) it to you tomorrow .i (to be) sure you (to like) it. i (to study) for an exam now.