Plz I have these reading and with 5 questions plz help I will write the questions just send messages plz

modal adverbs are used to modify specific verbs that consist of a linking verb (verb of being) and sometimes another verb. examples of modal verbs include can, could, may, might, must, shall, should, will and would.

modal auxiliary. an auxiliary verb characteristically used with other verbs to express mood, aspect, or tense. in english, the most common modal auxiliaries are can, could, may, might, must, ought, shall, should, will, and would. also called modal .

a is is the correct answer

quintessence, core, heart, crux, nucleus, substance, principle, fundamental quality, sum the origin of a word and the historical development of its meaning. insight, understanding, awareness, wisdom, education, learning, knowledge,

the unique function that the video specifically ascribes to sins near tunnels is "prohibiting certain cargo". tunnels have specific control signs such as minimum and maximum speed, the appropriate use of headlight and prohibited cargo. for your own safety it is important you understand the signs when approaching a tunnel.