Daisy is reading her English test because she has a test tomorrow. She_____ be studying.
A. will
B. should
C. must
D. can
KEY: C
Giải thích: must be Ving: chắc hẳn đang làm gì
Dịch: Daisy đang đọc bài kiểm tra tiếng Anh vì cô ấy có bài kiểm tra ngày mai.
________ he wasn’t feeling very well, David was determined to take part in the inter-university athletics meet.
__________ what Megan prepared for the job interview, she didn’t pass it.
He had the telephone installed in his car_________ his secretary to be able to contact him wherever necessary.
St. Catherine’s Monastery Library in Egypt is the first in the world ___________in the sixth century.
She hasn't eaten anything since yesterday. She_____ be really hungry.
I am learning skiing at an indoor school________ when I get to Switzerland.
Keep my hens in a field surrounded by wire netting_____ I can protect them against the foxes.