Will you go to the concert next week If you don`t go（ ）.

单项选择题All the donated money should be made full use（ ）the homeless people.

单项选择题Is this the mobile phone that you want to（ ）

单项选择题You`d better make a mark（ ）you have any questions while you are reading the passage.

单项选择题Did you have any problems in your English studyYes.（ ）a friend to practice speaking with.

单项选择题David has tried 3 times to repair the clock. He will try（ ）time after having a rest.