V. Supply the correct verb tense: Past Tense 1. Alan (look) ………………. out of the window when he (see) ………………. a UFO. 2. Tom (see) ………………. a serious acci
V. Supply the correct verb tense: Past Tense 1. Alan (look) ………………. out of the window when he (see) ………………. a UFO. 2. Tom (see) ………………. a serious accident while he (stand) ………………. at the bus stop. 3. Sam (try) ………………. to change a light bulb when he (slip) ………………. and (fall) ………………. 4. It … Đọc tiếp