The little boy who got lost decided to remain _____ he was and wait for his dad.
| A．what | B．where | C．there | D．that |
As you are now a member of our society we shall let you ______ our secrets.
| A．into | B．through | C．to | D．between |
_____ many times, she still didn't know how to do it.
| A．She was taught | B．Having taught | C．Having been taught | D．She has taught |
_____ many times, but she still didn't know how to do it.
| A．She was taught | B．Having taught | C．Having been taught | D．She has taught |
Scientists think that the continents today _______ always where they _______.
| A．aren’t; are | B．aren’t; were | C．weren’t; are | D．weren’t; were |
Scientists think that the continents _______ always where they ___today.
| A．aren’t; are | B．aren’t; were | C．weren’t; are | D．weren’t; were |