.Getting to other planets or to the moon many problems.A. involveB. involvesC. involvingD

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• .Either the dean or the principal the meeting.A. attendsB. attendC. are attendingD. have
• . was wrong.A. Not the teacher but the studentsB. Both the students and the teacherC. Neit
• .“ twenty dollars a big sum to her?” “I suppose so.”A. Will beB. IsC. AreD. Were
• .Three hours enough for us to finish the task.A. areB. hasC. isD. Were
• .Most of his savings in the Xin Hua Bank.A. has been keptB. is being keptC. have keptD. h
• .More than one worker dismissed.A. have beenB. areC. has beenD. Has
• .The gas works near the city.A. isB. areC. wereD. Be
• .Many a student the importance of learning a foreign language.A. have realizedB. has real
• .The surroundings of his house clean now.A. isB. areC. wasD. Were
• .The committee over the problem among themselves for two hours.A. has arguedB. has been a
• .The public generous in their contributions to the earthquake victims.A. isB. wasC. areD.
• .Cattle on the hillside.A. grazesB. is grazingC. was grazingD. were grazing
• .Her politics neither conservative nor liberal.A. isB. areC. wasD. has been
• .Measles a kind of infectious illness.A. isB. areC. wereD. have been
• .Tom is the only one of the stall members who to be promoted.A. is goingB. are goingC. ha
• .What caused the accident on the road.A. were stoneB. were stonesC. was stoneD. was stone
• .Wisky and soda his favorite drink.A. isB. areC. wereD. have been
• . is to attend our evening.A. both the singer and the dancerB. Either the singer or dance
• .The Smiths their breakfast when the morning post came.A. hadB. has been havingC. are hav
• .No one except two students the meeting.A. has been late forB. have been late forC. was l
• .All but him and me to the exhibition.A. am goingB. is goingC. are goingD. was going
• .Interest, as well as prospects, important when one looks for a job.A. areB. wereC. isD.
• .The president, accompanied by his assistants, .A. have arrivedB. are arrivingC. had arriv
• .A number of cars in front of the parkA. is parkedB. was parkedC. are parkedD. has parked
• .The number of articles published on smoking amazing.A. isB. areC. wereD. have been
• .The majority of the damage easy to repair.A. isB. areC. wereD. Be
• .Four-fifths of the crop .A. are ruinedB. was ruinedC. were ruinedD. have been ruined
• .Three-fourths of the buildings .A. was destroyedB. is destroyedC. were destroyedD. has be
• .Early to bed and early to rise a man healthy, happy and wise.A. makingB. to makeC. makeD