Complete the sentences with the correct fern of the verbs in brackets.
1. If you (whisper), !. (not hear) what you're saying.
2. We (be) late if you (not hurry up).
3. If you (throw) rubbish in the river, you (pollute) it.
4. Kate (not pass) her exams if she (cheat).
5. If you (stay) close to me, you (not get lost). 6. We of the fan club. (get) free tickets for the concert if we (become) members of the fun club​