未知题型 You will want two trees about ten feet apart, from _____ to suspend your tent.(A) there (C) which(B) them (D) where

未知题型 An Olympic Marathon is 26 miles and 385 yards, _____ approximately from Marathon to Athen.(A) distance (C) the distance(B) is the distance (D) the distance is

未知题型 Turn on the television or open a magazine and you _____ advertisements showing happy, balanced families.(A) are often seeing (C) will often see(B) often see (D) have often seen