1 . Though he is 10 years old, he doesn't know that 2 ______ by 4 makes 8.
A.multiplying | B.is multiplying |
C.multiplied | D.is multiplied |
您最近一年使用:0次
2 . Han Han wrote several novels, almost all of them_______ by teenagers.
A.appreciated | B.are appreciated | C.were appreciated | D.having appreciated |
您最近一年使用:0次