几道英语单选（没有财富值了,想知道为什么选那个答案19.Shouldthereanycomplaintfromtheendusers,pleaseletusknow.(A)is(B)have(C)be(D)arise31.Ifyouwillsendusacatalogbyair,weshallverymuch.(A)apprec

Question

几道英语单选（没有财富值了,想知道为什么选那个答案
19.Should there ______ any complaint from the endusers,please let us know.
(A) is
(B) have
(C) be
(D) arise
31.If you will send us a catalog by air,we shall ____ very much.
(A) appreciate
(B) appreciating
(C) appreciation
（D)appreciate it
33.Please note that we require the amendment ____ L/C by the end of October.
(A) to
(B) for
(C) at
(D) in
36.We are offering you goods ____ the very high quality.
(A) of
(B) at
(C) for
(D) with
翻译Please keep us posted of the developments in your market so that we can adjust our quotations to the extent you indicate.

Answer 1

1,C 情态动词的条件句,用一般现在时be表示将来时态,由于是情态动词引导的,所以只能选be不能用is.
2,D
3,B require for 是个短语组合
4,D with表示以……,这句话的意思是我们会提供高质量产品给你.
请随时告知你的市场发展情况 ,以便我们及时根据你的要求调整我们的报价.