Is that a book in farming? ________,I want to borrow it.
| A．So it is | B．If so | C．So is it | D．So if |
A group of children are looking into the box, ________ about what can be inside.
| A．worried | B．curious | C．careful | D．sorry |
I must be off now. My friends ________ outside.
| A．wait | B．have waited | C．were waiting | D．are waiting |
David is a great teammate. He knows well how to work with ________.
| A．both | B．other | C．others | D．another |
I was about to walk over to Tom’ s seat when he ________ and left.
| A．turned up | B．got up | C．kept up | D．came up |
Please do not feed the fish; they ________ die if they eat too much.
| A．shall | B．must | C．may | D．need |