Many____trees should be planted on the mountains.Many____trees should be planted on the mountains.A.thousand B.thousand of C.thousands D.thousands of B、C不用说了,但A、D怎么选?

Many____trees should be planted on the mountains.A.thousand B.thousand ofc.thousandsD.thousands of Many____trees should be planted on the mountains.Many____trees should be planted on the mountains.A.thousand B.thousand of C.thousands D.thousands of B、C不用说了,但A、D怎么选? You should should同义词 should倒装 should be you should It should should be should后加不加三单如题 should是什么意思 should是什么意思, should be should do呢？ should you 还是 you should two should be enought.should ·should什么词性?should的句型. should to do还是should doing 英文should i carry should i carry