Ex 1 hãy hoàn thành câu dưới đây với dạng đúng của động từ trong ngoặc 1 If we win the money , we ( buy) _______a new house 2 we ( go ) __________ an holiday if there is time 3 I will have no money left if I ( buy ) _____ that expensive car 4 Alex ( be ) _______ late he dosen't hurry up ! 5 If you don't understand I ( help ) _______ you with the 6 Gregg ( carbon )_______ the train if the leaves soon 7 if peter ( be ) ______ late we ( wait ) ____ for him 8 the bell ( ring ) _____ if there ( be ) _____ a fire 9the bike ( break ) __________if all three of you ( get ) ___________ on it 10 If you ( not learn ) ___________ how to use a compute I it ( be) ______ hard to find