The car passed through the streets _____ we thought was a very dangerous speed.
| A．which | B．at which | C．at what | D．what |
“How do you deal with the disagreement between the company and the customers?” “The key ______ the problem is to meet the demand ______ by the customers.”
| A．to solving, making | B．to solving, made | C．to solve, making | D．to solve, made |
The boy wanted to ride his bicycle in the street, but his mother told him ______.
| A．not to | B．not to do | C．not do it | D．do not do |
John wanted to ride his bike in the street but his uncle told him _____ .
A. not to B. not do B. not do it D. do not to
When _____ why he walked in _____ permission, he just _____ at us and said nothing.
| A．asked；without；stared | B．been asked；with；looked |
| C．asking；without；glared | D．to be asking；with；laughed |
He did all he could _____ .
| A．help me out | B．to help out me | C．help me out of | D．to help me out |