.
--- Mike, what did our monitor say just now?
--- Every boy and every girl as well as the teachers who _____ to visit the museum _____ asked to be at the school gate before 6:30 in the morning.
| A．is ; is | B．are; are | C． is; are | D．are; is |
Every family in America has had this sort of experience______there was a price increase of nearly one-third in the past two years
| A．that | B．which | C．what | D．when |
Polar bears live_______ on sea ice，which they use as a platform for hunting seals
| A．most | B．almost | C．nearly | D．mostly |
______everybody enjoys fresh cut flowers around his house．few people know how to keep them for as long as possible．
| A．Because | B．Since | C．While | D．If |
Scientific surveys conducted during the climbs ______that Mount Huandoy in Peru______ 6395 meters high
| A．shown；is | B．showed；was | C．shows；was | D．showed；is |
Women prefer to buy food which has already been prepared ______it reaches the market．
| A．after | B．for | C．before | D．until |