I've had a cookie，but you'd better give me________．I want to taste again.

Try hard to make what the teachers teach ___, and you’ll make rapid progress in your studies.

Which of these two magazines will you take?I’ll take________, in case the journey is boring.

---- Why is the cake so expensive?---- Maybe you don’t know a cake made of wheat costs less than _____ made of rice. 

I would appreciate ____ if you can keep an eye on my dog while I am away.