Leave your key with a neighbor _______ you lock your-self out one day.
| A．ever since | B．even if |
| C．soon after | D．in case |
Mrs. Taylor has an 8-year-old daughter who has a(n) ______ for painting—she has won two national prizes.
| A．ability | B．interest |
| C．present | D．gift |
My grandfather has a large __________ of stamps.
| A．correction | B．collection |
| C．connection | D．section |
It is a research group __________ 2 teachers and 8 students.
| A．consist of | B．consisting of |
| C．consists of | D．consisted of |
I can’t understand why he should tell a lie! He is my best friend! It doesn’t _____________.
| A．make sure | B．make out |
| C．make sense | D．make meaning |
If you _____________ your study, I am sure you will make greater progress.
| A．concentrate on | B．concentrate to |
| C．focus to | D．focus at |