----- Nội dung dịch tự động từ ảnh ----- Ex. 2 Choose the best answer to complete each of the following sentences. 1. The president_ reception last week. A. was inviting 2. The security guard noticed the broken window while he A. was walking a large number of employees and business partners to the B. invites C. had invited D. invited round the warehouse. B. walked C. had walked D. walks 3. The first was done by Alexei Leonov, a Russia cosmonaut on March 18th, 1965. It was 10 minutes long. C. spacewalk A. spaceward 4. Yuri Gagarin became the first person to eat and drink in A. weight 5. I passed all my exams - I'm B. spacesuit D. spaceship B. gravity C. specific gravity D. microgravity A. out of this world C. over the moon B. the sky's the limit D. once in a blue moon