Danny left word with my secretary _______ he would call again in the afternoon.
| A．who | B．that | C．as | D．which |
Tom wanted to play football with his friends in the street，but his father told him ______．
| A．not to | B．not to do | C．not do it | D．do not to |
Tom，together with Mary and Alice，______swim this afternoon．
| A．is going to | B．are going to | C．was going to | D．were going to |
______I be free tomorrow，I could go with you．
| A．Could | B．Should | C．Might | D．Must |
______stopping polluting the earth______hope to live in a better environment．
| A．Only to；we Call | B．Only to；can we | C．Only by；can we | D．Only by；we can |
You______be tired—you've only been working for an hour．
| A．must not | B．won't | C．can't | D．may not |