Tham Gia Group Dành Cho 2K10 Chia Sẻ, Trao Đổi Tài Liệu Miễn Phí
29. When the postman came I
a. was having
30. I .. a cough since yesterday.
a. have
. Supply the correct verb tenses.
We seldom (eat)
My mother sometimes (buy)
The earth (circle)
He had taught in this school before he (leave)
The sun (set)
Rivers usually (flow)
Yesterday our teacher (t ...