IV.Identify a mistake in each sentence and correct it

Question 15. Mai went to the Student Support Office although she wanted to get some advice.

A. went                                   B. although                             C. to get

Question 16. Are you sure you can get on your new classmates?

A. get on                                 B. Are                                     C. your

Question 17. If you don't know what to operate the machine, you should read the instruction manual.

A. If                                        B. what                                   C. should