She _______ blood twenty times so far.
A. donates
B. donated
C. has donated
D. is donating
so far: cho đến bây giờ (dấu hiệu thời gian cho thời HTHT)
Chủ ngữ “she” số ít => động từ chia kiểu “has + V phân từ II)
=> has donated
=> She has donated blood twenty times so far.
Tạm dịch: Cho đến bây giờ cô ấy đã hiến máu 20 lần
Đáp án cần chọn là: C
I haven't eaten this kind of ‘food before.
I haven't eaten this kind of ‘food before.
The last time I saw her was a week ago.
The last time I saw her was a week ago.
Traditional volunteer activities include ______ money for people in need, cooking and giving food.
We came to the remote village and ______ homeless children meals.
How many novels ______ Charles Dickens _____?
To help people in remote areas, we can _________ transportation, such as giving rides to the elderly.
How many novels ______ Charles Dickens _____?
Choose A, B, C, or D that best completes each sentence.
You can help young children by _______ them do homework before or after school.
Clean air provides us _____ a healthy supply of oxygen.
We ____ to Hanoi several times, but last summer we ___ there by train.
They have decided to ride to work _____ it is good for their health and the environment.
Do many people in your country _____ take care of others?