Question 25:                    programmers known as hackers often try to break into large computer systems.

A. mischief                   B. misbehaviour           C. mischievous             D. misunderstanding

Question 24: The students are expected to stick                     their school’s regulation.

A. in                              B. at                              C. to                              D. by

Question 23: A little farther down the street                 

A. is the inn I used to stay at                              B. there is an inn where I used to stay in

C. the inn is the place where I used to stay        D. is there an inn in which I used to stay

Question 22: Trilobites, a group of spineless animals, flourished in the oceans for several hundred million years                       some 200 million years ago.

A. that were extinct                                            B. and their extinction

C. became of their extinction                             D. until they became extinct

Question 21: After the fire, the government pledged to implement a program of           devastated national park.

A. reforestation             B. rebuilding                 C. replenishment          D. reconstruction

Question 20: It was                     that we went camping in the mountain last weekend.

A. such nice weather    B. so nice a weather      C. too nice weather       D. nice weather so

Question 19: I didn’t know                      my answer was right or wrong.

A. as if                          B. whether                    C. unless                       D. that

Question 18: I was doing my homework              the light went out.

A. after                          B. before                       C. while                        D. when

Question 17: Let’s begin our discussion now,             ?

A. shall we                    B. will we                     C. don’t we                   D. won’t we

Question 16: I will stand here and wait for you              you come back.

A. because                    B. thought                     C. so                             D. until