China ______ the WTO for more than 10 years, and it has brought great changes to it.
| A．has joined | B．has been in | C．has become a member of | D．has joined in |
The earthquake ____ when I ____ some cleaning.
| A．starts, was doing | B．started, was doing |
| C．was starting, was doing | D．starts, were doing |
My brother likes reading very much. The sentence structure is________.
| A．S+V+P | B．S+V | C．S+V+DO | D．S+V+IO+DO |
The farmers were so sad ____ they lost their farms.
| A．that | B．because of | C．but | D．because |
He always tells funny things to me and ________.
| A．makes me to laugh | B．makes me laughing |
| C．makes me laugh | D．makes me laughs |
Parents ________ good conditions ________ us. We should be grateful to them.
| A．provide, to | B．provide, for | C．protect, to | D．protect, for |