Can I say,<br/><br/>(a) He rears (some) <u>fish in /at</u> the (fish) pond.<br/><br/>(b) The police patrols<u> at night / at midnight</u>. <br/><br/>(c) They are <u>cleaning the compound</u>.<br/><br/>(d) He is typing (a letter) on / in / through the computer.<br/><br/>(e) He kicked the football in/into the goal.<br/><br/>(f) (Eating) vegetables <u>are good f</u>or/ to health.