The world has a big headache and it _______ by money. It began in America last year.
| A．cause | B．causes | C．is caused | D．are caused |
Lots of trees ________in our city over the years. It is becoming greener and greener!
| A．are planting | B．have planted |
| C．will be planted | D．have been planted |
-Hey, Molly, You______ on the phone just now. But you weren’t here and the man left a phone number.
-Oh? I was in the library.
| A．wanted | B．are wanted |
| C．were wanted | D．have wanted |
The little boy was made _____ again after his mother told him some jokes.
| A．laughed | B．laugh |
| C．to laugh | D．laughing |
— Food problem is becoming a big one in China!
—I think the food ________ before going to shops or supermarkets.
| A．is checked | B．is checking |
| C．should be checked | D．should check |
English _____________ in more and more countries today.
| A．teaches | B．teach |
| C．was taught | D．is taught |