If people keep _______ down the forests, they will have nowhere _______.
| A．to cut, to live | B．cutting, to live in |
| C．to cut, to live in | D．cutting, to live |
The earthquake killed _______ .people .
| A．thousand | B．three thousands | C．thousands of | D．three thousands of . |
The floor is all wet .Please _______ .
| A．cleans it | B．cleaned | C．mop up it | D．mop it up |
No one told us _______ ,so we need your help.
| A．how should we do | B．what should we do |
| C．what to do it | D．how to do it |
The _______ driver drove his car very _______ and it crashed _______ a tree.
| A．careless ；carelessly ；into | B．careless ； carefully ；on |
| C．careless ； carefully ；on | D．careful；carelessly ；into. |
Both of _______ heard a loud noise .It was _______ thunder.
| A．us ; like | B．us ; likes | C．we ; like | D．us likes |