Chọn đáp án đúng nhất

1.   Water ________ of hydrogen and oxygen.

• is consisting

• consists

• has consisted

•  will consist

We ________ students, so we ________ to school on weekdays

• is giving

• gives

• will give

• has given

The sun ________ the ball of fire in the sky that the Earth ________ round

• will be / has gone

• is / goes

• will be / will be going

• has been / is going

Sally ________ really hard for her exams this week.

• is taking

•  had taken

• will be taking

• is taking

They ________ to finish their work because they ________ Los Angeles next Sunday.

• needed / have visited

• need / are going to visit

• are needing / visit

• have needed / are visiting

When Susan ________ yesterday, Peter ________ dinner. He ________ cooking very much and often ________ the meals himself.

• had phoned / cooked / liked / prepared

• phoned / was cooking / likes / prepares

• was phoning / was cooking / has liked / is preparing

•  has phoned / is cooking / is liking / preparing

They ________ good preparations before they ________ their final examination yesterday

•  made / had taken

• had made / took

• have made / take

• will have made / have taken

By the time John ________ to help, we ________ the work.

• comes / finished

• comes / will have finished

• came / have finished

• will come / will have 

These students ________ hard since the beginning of the school year because they ________ their graduation exam next May.

• studied / are going to take

• have been studying / will take

• study / will have taken

• are studying / will be taking

      John ________ his parents in France at the moment. He ________ in New York, but ________ his parents for the past few weeks.

• was visiting / live / had visited

•  is visiting / lives / has been visiting

• has visited / lived / is visiting

• has been visiting / had live / has been visiting