1.his parents were very happy because he passed his exam
=> If
2.They use gas because they think it cheaper than electricity
=>If
3.His friends were so late, so they missed the train
=>If
4.I couldn’t tell you the truth because I made a promise
=>If
Giải thích các bước giải:
1 If he passed his exam, his parents were very happy
2 If they think gas cheaper than electricity, they use it
3 If his friends missed the train, they were so late
5 If I made a promise, I couldn’t tell you the truth
Đáp án:
1
if he passed so his exam his parents were very happy
2
if they use gas they think it cheaper than electricity
3
if his friends get up soon so they đont missed the train
4
if i made a promise so i couldn’t tell you the truth
Giải thích các bước giải: