Narcissus bulbs _____ at least three inches apart and covered with about for inches of welldrained soil.
A. must plant
B. should be planted
C. should have been planted
D. should be planting
Đáp án B
Cấu trúc bị động của động từ khuyết thiếu should: should + be + V_ed/ PII
Tạm dịch: Những củ hoa Thủy Tiên nên được trồng tách ra ít nhất là 3 inches và nên được bao phủ với khoảng 4 inches lớp đất khô ráo nhất.
Smoking is extremely detrimental to health, _____ many people continue to smoke anyway.
Many years ago, black children were _____________ to discrimination in many schools.
The authorities recommend that the meeting _____________ next Monday.
Her husband is very kind. He always cares _____ her and never puts all of the housework her.
As a small boy, he used to _______ alone in the house for an hour or two.
The archaeological excavation _____ to the discovery of the ancient city lasted several years.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We decided to spend ______ summer in ______ seaside town.