1) The archeologist was digging. a) Past Simple b) Past Continuous c) Past Perfect 2) The paleontologist arrived to the piramyds. a) Past Simple b) Past Continuous c) Past Perfect 3) The dog had dug a bone. a) Past Simple b) Past Continuous c) Past Perfect 4) I caught the ball in the baseball game. a) Past Simple b) Past Continuous c) Past Perfect 5) I was walking around the park. a) Past Simple b) Past Continuous c) Past Perfect 6) We were seeing the animals in the zoo. a) Past Simple b) Past Continuous c) Past Perfect 7) I had finished my homeworks. a) Past Simple b) Past Continuous c) Past Perfect 8) We had read the evolution book for the project. a) Past Simple b) Past Continuous c) Past Perfect 9) The man discovered the trace. a) Past Simple b) Past Continuous c) Past Perfect 10) He was tripping with the skeleton. a) Past Simple b) Past Continuous c) Past Perfect 11) I went to school yesterday. a) Past Simple b) Past Continuous c) Past Perfect 12) The sun was breaking the bone. a) Past Simple b) Past Continuous c) Past Perfect 13) I was digging in the soil _________ I found the bone. a) when b) while c) before d) after 14) I swam in the ocean _______ the shark was looking for food. a) when b) while c) before d) after 15) They discoverd the skeleton __________ they had put it in the museum. a) when b) while c) before d) after 16) The archeologist found the bone __________ they had put together the skeleton. a) when b) while c) before d) after 17) ________ the animal was running from the dinosaur, it tripped and fell. a) when b) while c) before d) after 18) ________ the ice had melted, the fire covered the earth. a) when b) while c) before d) after 19) ________the meteorit fell, the dinosaurs were living on earth. a) when b) while c) before d) after 20) _________  there were mammals on earth, the dinosaurs had existed. a) when b) while c) before d) after

When & While/ Before & After

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？