`1`. Unless you hurry, you'll miss the bus.

`2`. Unless she studies hard, she will fail the test.

`3`. Unless we water the plants, they will die.

`4`. Unless you wear warm clothes, you will get cold.

`5`. Unless he works hard, he won't get a promotion.

`6`. Unless you turn off the lights, you'll waste electricity.

`7`. Unless they leave now, they'll be late.

`8`. Unless it rains soon, the crops will die.

`9.` Unless we save money, we can't buy a new car.

`10`. Unless you follow the instructions, the machine won't work.

`11`. Unless I finish my homework, the teacher will be angry.

`12`. Unless you eat breakfast, you will feel tired.

`13.` Unless the weather is nice, we won't go camping.

`14`. Unless you apologize, she won't forgive you.

`15`. Unless we clean the house, it will be messy.

`16`. Unless he sets the alarm, he will oversleep.

`17`. Unless I charge my phone, it will run out of battery.

`18.` Unless you practice regularly, you won't improve.

`19.` Unless she leaves soon, she'll miss her flight.

`20.` Unless they lock the door, someone might break in.  

`-----------------`

`***` Unless = If not

`@` Câu điều kiện loại `1`:

`***` If + S + V(htd), S + will/should/can/may/... + V-inf

`=>` Dùng để dự đoán một hành động, sự việc có thể xảy ra ở hiện tại hoặc tương lai

`-` We use the first conditional to talk about:

`+` possible conditions + possible results

`-` Ex: If they win the match, they’ll be champions.

`+` possible conditions + requests or orders

`-`Ex: If you need help, call me.

`-` We can use:  can , could , may or might in the main clause instead of will .

`+` Ex: If John scores a goal, we might win the game.

`-`  Unless in the if-clause instead of if…not

`-` Ex: You won’t win unless you work harder.