At least 450 years ago, corn was____ China.
| A．brought to | B．brought in | C．bought to | D．bought in |
The boy whose mother was out for business hurt a finger, an apple into pieces.
| A．to cut | B．cut | C．cutting | D．and cutting |
—Why is the house in a mess?
—Iit for Christmas since three days ago.
| A．cleaned | B．cleans |
| C．have cleaned | D．have been cleaning |
—How amazing!Cloud looks like a large elephant.
—Yeah, it really does.
| A．A | B．An | C．The | D．不填 |
_______ homework did we have to do that we had no time to take a rest.
| A．So much | B．Too much | C．Too little | D．So little |
Sarah felt like when she found out that she had been chatting online with a boy student of her same class.
| A．cry | B．to cry | C．being crying | D．crying |