正確答案是：B.
考點(diǎn)：
【祈使句+and 】固定句式.
知識(shí)鏈接：
【祈使句+and /and then/or /or else/otherwise】可以轉(zhuǎn)換為if條件句,或非謂語動(dòng)詞結(jié)構(gòu).例如：
【Check】your composition carefully,and some spelling mistakes can be avoided.
=If you check your composition carefully,some spelling mistakes can be avoided.
=Checking your composition carefully,some spelling mistakes can be avoided.
注意：后面兩種替換形式中都【沒有連詞 and】.
祝你開心如意!