______ he referred to in his article was unknown to the general reader.
| A．That | B．What | C．Whether | D．Where |
weather
| A．warmth | B．method | C．theory | D．breathe |
physics（）
| A． | plea sure | B． | mu sic | C． | sure | D． | increa se |
teacher
| A．great | B．heavy | C．idea | D．disease |
open
| A．become | B．across | C．lonely | D．balcony |
--- Jack, I’d like to have your opinions about my written report.
--- _______. But I have one suggestion.
| A．That’s a good idea | B．You are too modest |
| C．It looks fine to me | D．You should check it first |