make sure 的用法如果只用make sure,则句子是Please make sure the speakers work tomorrow.这里的时态是用一般现在时表将来.如果加了should ,那么此句是不是改成You should make sure that the speakers will work tomorrow.就是要有will这个时态了,

问题描述:

make sure 的用法
如果只用make sure,则句子是
Please make sure the speakers work tomorrow.
这里的时态是用一般现在时表将来.
如果加了should ,
那么此句是不是改成You should make sure that the speakers will work tomorrow.
就是要有will这个时态了,

第一句是祈使句,所以用一般现在时代替将来时,第二句是宾语从句,自然要用将来时