Improve the bracketed part of the sentence.

Many such mishaps can be avoided if we (are) careful.

 

Yes, all the above given sentences have an interjection.

1. Hey ! is an interjection in the sentence , Hey!, where did I park my car? 

2. Well is an interjection in the sentence, Well!, that's a relief.

3. Oh! is an interjection in the sentence , Oh!, now I remember where i put my wallet.

One word substitute for A person who loves everybody is Altruist. Altruism is the belief that the well-being of others is equally, if not more, important than the well-being or survival of the self. Further, altruism involves selfless acts or undertakings that put the welfare of others before one's own.

Facilitate means assist someone in their progress or work. Here Help is the only word which is similar in meaning with facilitate. Halt and check are antonyms i.e opposite in meaning of facilitate. 

Hence, facilitate is similar in meaning to help.

A person who insists on something unyieldingly is called a Stickler.

Small means a little in size or quantity.

Here in the given options, Tiny means same as small.

Hence, Small most nearly means as Tiny.

A person that believes completely in fate is a fatalist, or sometimes predestinarianist or determinist.

Dull means not sharp, not shining, not bright, ...

Hence, the given words are all that means the opposite of dull.

Words to describe a beautiful woman are :: appealing, fair, charming, fascinating, dazzling, fetching, angelic, fine, delicate, delightful, divine, beauteous, ...