I am not sure ............ food tablets might supply enough energy for astronauts or not.
A. what
B. why
C. how
D. if
Giải bởi Vietjack
Ta nhận thấy ở cuối câu gián tiếp có cụm “or not” (có hay không) mang ý nghĩa nghi vấn nên câu trực tiếp phải là một câu hỏi nghi vấn Yes/ No
Cấu trúc: S+ asked + O + if / whether + S + V.
=>I am not sure if food tablets might supply enough energy for astronauts or not.
Tạm dịch: Tôi không chắc liệu viên nén thức ăn có thể cung cấp đủ năng lượng cho các phi hành gia hay không.
Đáp án cần chọn là: D
Choose the best sentence which has the same meaning as the original one.
She said to her mother, “I am reading now.”
The teacher asked, "Who speaks English?"
=>The teacher wanted to know_________.
The teacher asked us what the essential conditions for human life ..................
“If the weather is fine, I will go on a picnic with my friends,” she said.
Put the following sentences into reported speech.
“Why aren’t you curious about what an alien looks like?”, Ly asked me.
“I have just received a postcard from my aunt,” my best friend said to me.
Our teacher asked if we understood the lesson about planets in solar system that day.
“I went to see him yesterday”, she said.
=>She said she ______ to him the day before.
"If I were you, I would kept silent”, he said to me.
=>He advised me __________.
