A.Viên gạch
B.Tế bào
C.Căn phòng
D.Hộp diêm

A.Kính cận
B.Kính thiên văn
C.Kính lão
D.Kính hiển vi

A.Nhiều hình chữ nhật
B.Nhiều hình tròn
C.Nhiều hình tam giác
D.Nhiều cấu trúc hình hộp nhỏ

A.Albert Einstein
B.Isaac Newton
C.Robert Hooke
D.Thomas Edison

A.Much as the virus is so contagious, the country misses the opportunity to contain its spread.
B.Unless the virus is so infectious, this country can’t bring it under control.
C.If only the virus weren’t so infectious and this country could bring it under control.
D.So long as the virus is so infectious, this country would bring it under control.

A.I stayed up all night to finish the novel, therefore, it was interesting.
B.Unless it were an interesting novel, I would stay up all night to finish it.
C.Only after I stayed up all night to finish the novel was it interesting.
D.So interesting was the novel that I stayed up all night to finish it.

A.Unless I was taught how to handle the stress of test taking, I would have had a good performance in the exam.
B.If only I had been taught how to handle the stress of test taking to have a good performance in the exam.
C.I wish I hadn’t been taught how to handle the stress of test taking to have a good performance in the exam.
D.I will have a good performance in the exam as long as I had been taught how to handle the stress of test taking.

A.Precisely
B.Sorry to hear that
C.I doubt it
D.I’m afraid I go along with you

A.Fair enough
B.It’s such an effective method
C.You have a point
D.I doubt it

A.most of whom
B.that
C.most of which
D.most of that