根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
When your pet is sick, you know it needs medication. But pets, like babies, don't know the pill you want them to take will help them.      Here are some tips to help get your pet to take liquid medicine.
     If the answer is yes, then your easiest path is to mix it with canned food. First give your hungry pet a small amount of canned food without the medication. It's important that the pet nibbles (一点一点地吃) at the food and sees that there's nothing wrong.
Next, while the pet is still hungry, mix the medication in a small amount of food and present it. Repeat as necessary to get the entire dose (剂量)down.    If the pet decides not to finish the meal, the dose will be wasted.
If the chemist says the medication cannot be taken with food, you need a syringe (注射器) or a dropper (滴管) to get the liquid down your pet's throat.
  Keep a cheerful tone in your voice so the pet doesn't sense your stress or hesitation. Position your pet where it cannot run away, perhaps having a dog sit with his back against a wall or chair ---- or a cat on your lap.
   Use your other hand to insert the syringe or dropper between the cheek and back teeth. Slowly squeeze the medication so the pet won't choke. Try to keep your pet's mouth closed for about 30 seconds until you see it has swallowed. If your pet is being obstinate (倔强的) , stroke (抚摸) its throat gently or blow on the face.
Be sure you end the process with praise and perhaps a treat so your pet will not associate medication with a bad experience.

A．Before you call your pet in, be sure to have the medication and any other materials you’ll need ready.

B．Once the pet is in position, use one hand to gently open the pet's mouth from above, tilting(倾斜) back the head slightly.

C．Ask the vet(兽医) if the liquid medication can be given with food.

D．You should know the reason why the pet refuses to take medicine.

E. Never mix the medication with the full meal.
F. They just know it smells funny and they don't want it.
G. Don’t force your pet to swallow all the medicine