I had begun by tracing the Japanese characters with a pencil.
*begun is a past participle
Answer:
An infected person sneezes, coughs, etc. near you. You inhale the virus particle, and it attaches to cells lining the sinuses in your nose. The virus attacks the cells lining the sinuses and rapidly reproduces new viruses. The host cells break, and new viruses spread into your bloodstream and also into your lungs.
Explanation:
fun stuff
Answer:
The next train <u>is</u> at exactly 3 o'clock this afternoon.