A.It’s nice of you to say so.
B.It’s my pleasure.
C.You’re welcome.
D.That’s okay.

A.I couldn’t disagree more,
B.I understand what you’re saying,
C.You’re right,
D.I don’t see it that’ way,

A.You’re exactly right!
B.You could be right.
C.You’re dead wrong.
D.I couldn’t agree less.

A.You’re right.
B.Oh, I don’t know.
C.I couldn't agree more.
D.I don’t think so.

A.Oh, I hope so
B.It’s all right
C.I definitely agree
D.Good idea

A.You’re better now
B.Be confident
C.It’s the least I can do
D.Have you heard their story?

A.You may apologise to Mr. Perkins for your disrespectful comments.
B.You must apologise to Mr. Perkins for your disrespectful comments.
C.You should apologise to Mr. Perkins for your disrespectful comments.
D.You can apologise to Mr. Perkins for your disrespectful comments.

A.Had Tim not taken a training course in medicine, he couldn’t have helped the man out of danger.
B.But for a training course in medicine, Tim wouldn’t be able to help the man out of danger.
C.Although Tim had a training course in medicine, he couldn’t help the man out of danger.
D.Without having had a training course in medicine, Tim could have helped the man out of danger.

A.Had Tim not taken a training course in medicine, he couldn’t have helped the man out of danger.
B.But for a training course in medicine, Tim wouldn’t be able to help the man out of danger.
C.Although Tim had a training course in medicine, he couldn’t help the man out of danger.
D.Without having had a training course in medicine, Tim could have helped the man out of danger.

A.Các loại tế bào đều có chung hình dạng và kích thước.
B.Các loại tế bào thường có hình dạng khác nhau nhưng kích thước giống nhau.
C.Các loại tế bào khác nhau thường có hình dạng và kích thước khác nhau.
D.Các loại tế bào chỉ khác nhau về kích thước, chúng giống nhau về hình dạng.