review-reported speech and conditional 1-2

My friends promised that they would come to my birthday party _____

• tomorrow

• yesterday

• the previous day

• the following day

If my grandfather ____ten years younger, he would do yoga every day.

• has been

• is

• were

• was

The environment ___great harm if we keep using up the natural resources.

• will suffer

• has suffered

• suffer

• would suffer

If we ___ to reduce air pollution, we must minimise our gasoline consumption.

• wanted

• want

• will want

• have wanted

The local government said that the ecotourism ___ a type of travel that helped to reduce the harm tourists cause to the environment.

• had been

• was

• were

• is

The teacher asked us ___ that air pollution could cause global warming.

• if we know

• did we know

• if we knew

• we knew

I asked her ___ she understood the lesson.

• that

• if

• what

• when

We want to go on holiday this year but we don't have enough money.

• If we have enough money, we will not go on holiday this year.

• If we had enough money, we would go on holiday this year.

• If we had enough money, we would have gone on holiday last year.

• We won't go on holiday this year even if we have enough money.