7. -The boss wants to talk to you.He seems unhappy with your performance. -Oh,I ___be in trouble.I hope he won't fire me.
A、must
B、can
C、should
D、would
(31)___
A、How
B、Whether
C、Before
D、As
II.Vocabulary and Structure(15 points) Directions:There are 15 incomplete sentences in this section.For each sentence there are four choices marked A,B,C and D.Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet. 6.I asked two passers-by how to get to the new railway station,but___of them knew it.