【正文】
two hundreds B. thousand of。 3. 了解幾種自然災(zāi)害的英文名稱。 live in C. big enough。 ( ) 1. The floor is dirty. Can you help us ______________? A. mop it up B. mop up it C. mop them up D. mop up them ( ) There was a rainstorm and the flood ______________ some houses last month. A. put away B. took away C. washed away D. went away ( ) 3. We can’t decide wha t to do ______________ our headteacher tells us about it. A. while B. since C. until D. when ( ) 4. The weather report says that there will be _____________ tonight. Please close all windows and doors. A. a typhoon B. a flood C.