The teacher __________ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.

A. should       B. can

C. would D. must

D


解析:

“must+have+過去分詞”表示對過去情況的肯定推測。句意為：我想，老師一定認為約翰遜是值得教的，要不然她就不會在他身上浪費時間了。

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：

.The teache rfound ____ difficult to decide____ he would take with him to attend the

conference.

  A.it;whom        B.himself;who       C.this;whom      D.that;who

查看答案和解析>>

同步練習冊答案