Based on the agreement,all payments be made by the end of the month.

may

can

will

考查情態(tài)動(dòng)詞。句意：根據(jù)協(xié)議，所有款項(xiàng)應(yīng)在月底付清。shall用于法律，條款中表示必須要做的事。故選C項(xiàng)。

Great amounts of water poured into the river from the factories two years ago.

was

were

has been

have been

考查時(shí)態(tài)和主謂一致。句意：兩年前，工廠將大量廢水排入河中。根據(jù)two years ago 可知，句子使用一般過去時(shí)。....amounts of修飾不可數(shù)名詞作主語時(shí)，謂語動(dòng)詞用復(fù)數(shù)形式，即謂語動(dòng)詞與amounts保持?jǐn)?shù)的一致。故選B項(xiàng)。

In our daily life, everyone fails every now and then. It is how you that makes a difference.

react

replace

rely

request

考查動(dòng)詞詞義辨析。句意：在我們的日常生活中，每個(gè)人都會(huì)時(shí)不時(shí)地失敗，你對(duì)失敗如何反應(yīng)才是關(guān)鍵。A. react反應(yīng)；B. repalce取代，代替；C. rely 依靠，依賴；D.request要求；根據(jù)“n our daily life, everyone fails every now and then”，應(yīng)是“怎樣做出反應(yīng)”。故選A項(xiàng)。