题目

Complete the sentences. 1. He always enjoys ______（发明）new things. 2. Did you read today’s       （报纸）? 3. He will tell me      （一切）he knows. 4.      （大多数）of them don’t agree to his plan. 5. I don’t      （懂得）what you mean. 6. His family      （搬）to London two months ago. 7. It’ll rain today. You’d better take an      （雨伞）with you. 8. His English is      （马马虎虎）. 9. May comes after      （四月）. 10. Good      （运气）to you, Ann! 11. Mr Mott             3．设向量$\overrightarrow{a}$=（1，2），$\overrightarrow{b}$=（1，-3），若向量$\overrightarrow{a}$+$\overrightarrow{b}$与向量$\overrightarrow{c}$=（-2，x）共线，则x=（　　）A．-1B．-4C．1D．4