The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.
A、tobebasedonD
暂无解析
Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
It is no longer a problem _______ the poor children in this district can go to school.
A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.
It _____ quite a few years _____ the accused was declared innocent and set free.
________evidence that language acquiring ability must be stimulated.
