---- Look! The man standing at the gate ______ be our headmaster．
---- No, it _______ be him．He is holding a meeting in the office now．
| A．must; can’t | B．must; mustn’t |
| C．can’t; can’t | D．can’t; mustn’t |
__________ good grades, you should try to study harder.
| A．Get | B．In order to get | C．Getting | D．Got |
The big bag is too heavy for the little boy ________. Who volunteers to help him?
| A．carries | B．carrying | C．carried | D．to carry |
Bob used toin the countryside .but mow he is used to in the big city
| A．live ;live | B．live; living | C．living ; living | D．living; live |
Mary will make a plan as soon as she her homework.
| A．finishes | B．finish | C．will finish | D．finished |
If you don’t put up the sings after school, .
| A．so does Jim | B．so will Jim |
| C．neither does Jim | D．neither will Jim |