Tim may be told about it at once.

Tim should be told about it at once.

Tim must be told about it at once.

Tim might be told about it at once.

He must be met at the airport.

He might be met at the airport.

He should be met at the airport.

He may be met at the airport.

The company needs accept his application.

The company might/ may accept his application.

The company must accept his application.

The company should accept his application.

Every student might write an essay on the topic.

Every student must write an essay on the topic.

They require every student write an essay on the topic.

Every student should write an essay on the topic.

We needn’t get a visa for Singapore.

We mustn’t get a visa for Singapore.

We mayn’t get a visa for Singapore.

We shouldn’t get a visa for Singapore.

The girl who just said hello is Tom’s youngest sister.

The girl saying hello is Tom’s youngest sister.

The girl just said hello is Tom’s youngest sister.

The girl, who just said hello, is Tom’s youngest sister.

The bus which I’m waiting is late.

The bus whom I’m waiting for is late.

The bus for that I’m waiting is late.

The bus I’m waiting for is late.

This house, which built years ago, is still in very good shape.

This house, built years ago, is still in very good shape.

This house, building years ago, is still in very good shape.

This house, which was built years ago is still in very good shape.

None of the people that watched the game will ever forget it.

The people watched the game none of whom will ever forget it.

Nobody that watched the game will ever forget it.

Both A and C are correct.

Quang whose father is a famous painter is very good at drawing.

Quang, whose father is a famous painter is very good at drawing.

Quang, whose father is a famous painter, is very good at drawing.

Quang’s father, who is a famous painter, is very good at drawing.

That’s the man about whom I told you yesterday.

That’s the man whom I told you yesterday.

That’s the man about that I told you yesterday.

That’s the man I told you yesterday.

He doesn’t drive as carefully as he used to.

He doesn’t drive carefully than he used to.

He doesn’t drive as carefully than he used to.

He doesn’t drive as carefully he does.

Mai speaks English more fluently than no one in our club.

Mai is the worst English speaker in our club.

Mai speaks English as fluently as other people in our club.

Mai speaks English the most fluently in our club.