-- Look at the boy running on the ground. Is it David?
-- It _______ be him. I saw him go to the teacher’s office just now.
| A．might | B．could | C．can’t | D．mustn’t |
Let’s ________ at the red dress.
| A．have look | B．have a look | C．see | D．have a see |
Please stand ______ rows.
| A．in | B．on | C．at | D．with |
Boys, help _______ to the delicious food.
| A．yourself | B．himself | C．yourselves | D．you |
—What are the flowers _______?—They are beautiful.
| A．look | B．like | C．look like | D．likes |
______ she did this, all would be well.
| A．As long as | B．So long | C．As if | D．Even if |