Correct form 1._____________the light suddenly came on although no one was standing near the switch. (mystery) 2. China became the third country in th
Correct form 1._____________the light suddenly came on although no one was standing near the switch. (mystery) 2. China became the third country in the world to be able to____________carry out manned space flights. (depend) 3. If there was a_________failure, Gagarin might never get back to the Earth (technic)