Astronaut Zhai Zhigang has become the first Chinese_____in space.
A: walking
B: walked
C: to have walked
D: to walk
A: walking
B: walked
C: to have walked
D: to walk
举一反三
- He _____ to the theater last night. A: are walking B: have walked C: walk D: walked
- I can still remember us hand in hand through the street. A: have walked B: walked C: to walk D: walking
- Mary_______in the garden when it began to rain. A: was walking B: walked C: walking D: had walk
- It often takes me half an hour ( ) home. A: walking B: to walk C: walked D: walk
- Tom was noticed ( ) into that room at that time. A: walk B: walks C: walking D: walked