Bài 1. Cho dạng đúng của động từ trong ngoặc.
⦁    If I had known my friend was in the hospital, I (go) ............................ to see her.
⦁    I did not see you in the pool yesterday. If I had seen you, I (swim) ............................ with you.
⦁    My mother did not go to the gym yesterday. She (go) ............................ if she had not been so tired.
⦁    She (not/ leave) ............................ home if her father had not disturbed her.
⦁    If he had been looking in front of himself, he (not/ walk) ............................ into the wall.
⦁    The view of the mountain was wonderful. If I had had a camera, I (take) ............................ some pictures.
⦁    She was not thirsty. If she had been thirsty, she (drink) ............................ some water.
⦁    If my grandmother had gone to the university, she (study) ............................ science. She likes science a lot.
⦁    If I had known how to swim, I (swim) ............................ when we went to the beach.
⦁    If you had given a direct address to me, I (find) ............................ that museum easily.
⦁    If I had had enough money, I (buy) ............................ a big house for myself.
⦁    We (go) ............................ for the picnic yesterday if the weather had not been rainy.