What does the underlined word“collapsed” probably mean？ （)A． Were destroyedB． Caught fire

What does the underlined phrase “die hard” in Paragraph I probably mean？（） A

What does the underlined word "litter" mean in Paragraph 2？A．Not many.B．Serious problem.C．

What does the word "invitro" underlined in Paragraph 2 most probably mean？A．Normal.B．Test－

What does the underlined phrase “an instant hit” （Para. 3) mean？A a fast blow B a sudd

What does the underlined word “anties” refer to？”A. Smut wordsB. Unusual actions.C. Su

What does the underlined word “distractions” probably refer to？A. Ways that help one t