Chủ đề:
Violympic toán 8Câu hỏi:
Hình thang ABCD có đáy nhỏ AB,AB+CD = 20cm, đường trung bình MN, I là trung điểm MN, IK//AD, K thuộc DC. Độ dài DK là ... cm
Complete the sentences using must, mustn't, have to, not have to(in the correct form)
a) you..... forget what the teacher haqs told you. It is very important for your learning.
b) I got up early this morning because I ..... go to a meeting
c) I .... get to the shop before it closes
d) We couldn't repair the motorcycle ourselves. We ... take it to a motorcycle repair service.
e) In many parts of the city, office workers .... work on saturday
f) You .... step on that edge. It is very dangerous
Giu1p mình với các bạn