None of the students ______ to class yet.
A. are coming
B. hadn't come
C. haven’t come
D. have come
Dấu hiệu nhận biết của thì hiện tại hoàn thành: yet
“yet” (chưa/ cho đến giờ) ("yet" có thể dùng trong câu phủ định hoặc nghi vấn; thường đứng cuối câu, hoặc có thể đứng giữa câu sau not)
Động từ của thì HTHT chia theo dạng: have/has + Ved/V3
=> None of the students have come to class yet.
Tạm dịch: Vẫn chưa có học sinh nào đến lớp cả.
Đáp án cần chọn là: D
Her mother tells me that she ______ professionally since she was four
Tom often watches TV after his parents ______ to bed.
He ______ off alone a month ago, and _______ of since then.
I’d like to see that football match because I ______one this year.
Up to now, the discount ______ to children under ten years old.
A digital camera is used for _____ the pictures and video clips in electronic format instead of to film.
Their children ______ lots of new friends since they ______ to that town.
I can’t believe that you ______all the three exercises. You just started five minutes ago.
A smart watch is used _____ you access to lots of information besides the time of day, such as missed calls, messages, and emails.
They often use a webcam _____ moving pictures and sounds and allowing these to be broadcast on the Internet.
People use a tooth sensor ____ any bacteria causing cavities, or any other infections in your teeth.
Lima Billboard in Peru is used _____ clean water from Lima’s extremely humid air.