John ……………. for three tests this month.
A. sat
B. have sat
C. has sat
D. is sitting
Giải bởi Vietjack
Đáp án đúng: C
Dịch: John đã ngồi làm ba bài kiểm tra tháng này.
He………. more concerned about his social status since he started working there.
Choose the correct answer to complete the sentence
You ……………… a lot since the last time I saw you.
Kathy …………….. for three different companies since graduating two years ago.
