--It is really fun to hike and I often go hiking in the forest.
--But hiking alone in the forest ______ be very dangerous.
| A．can | B．must | C．shall | D．will |
She hurriedly left the room as if ___.
| A．she angry | B．was angry |
| C．it was angry | D．angry |
—She may not be free today.
—___, we’ll have to put the meeting off.
| A．If may | B．If not |
| C．If she may not | D．If she may not be free today. |
—Is your mother going to the supermarket ?
—No, ____.
| A．she doesn’t | B．she’s cooking |
| C．she gets by bus | D．to a tailor’s shop |
—Did you visit the museum last week ?
—No, we ___, but we spent too much time shopping.
| A．could have | B．could |
| C．must have | D．must |
Who can you turn to in time of danger, if not ___?
| A．ourselves | B．ours |
| C．we | D．us |