Peter has been working for 10 hours. He _______ be very tired now.
A.needn't
B.must
C. mustn’t
D.should
Giải bởi qa.haylamdo.com
needn't: không cần
must: phải
mustn’t: không được
should: nên
=>Peter has working for 10 hours. He must be very tired now.
Tạm dịch: Peter đã làm việc 10 tiếng đồng hồ rồi. Anh ấy giờ đây hẳn là phải mệt lắm.
Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes. You _______ research the route a little more before you attempt the ascent.
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Chọn từ thích hợp điền vào chỗ trống:
Keep quiet. You _______ talk so loudly in here. Everybody is working.
John didn’t do his homework, so the teacher became very angry. John ______his homework.
