Subject-Verb-Agreement

One of the things she learnt from years of research and teaching ______ (be) that everyone has the ability to be an effective negotiator.

• is

• are

This is one the most important lessons Shelly _____ (have) learnt.

• has

• have

Grandpa claims that Martian measles _________ (cause) green and purple spots to erupt all over a person's body.

• cause

• causes

It is important to note that we need to use strategies which _____ (suit) the actual situation we are facing.

• suit

• suits

The movie, including all the previews, _____ (take) about two hours to watch.

• take

• takes

Neither of Fred's parents _________ (have) much intelligence when it comes to choosing spouses. Fred's father has married five times, and Mom just presented him with stepfather number three.

• has

• have

The committee ______(lead) very different lives in private.

• lead

• leads

Each man, woman, and child _____ (need) to write General Foods a letter supporting the company's decision to produce a chocolate-broccoli breakfast cereal.

• needs

• need

Collecting match-boxes _____ (be) one of his favourite pastimes.

• is

• are

Asteroids and comets slamming into Earth _____ (worry) Maggie; she tries to remain under the protective cover of her roof as much as possible.

• worries

• worry