1 - is 2 - ok 3 - were sway ing in 4 - running 5 - ok 6 - at the optician's 7 - no "to" 8 - ok 9 - ok (US spelling is tire) 10 - an ambulance is traveling at a high rate of speed traveling at a high speed
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Vincent TeoCan I say,I'll venture a guess that you mean this:
(4) The cockroach is climbing on the floor.
Vctory Ong(1)The cockroach is crawling on the floor.You could say that if the cockroach is moving slowly. If the cockroach is moving quickly, I might suggest this:
Vctory Ong(2)In the morning(=every morning ?), postmen deliver letters.Your sentence makes