After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed .
| A．in vain |
| B．in case |
| C．in time |
| D．in trouble |
Travelers_______________ that they should bring their ID cards with them.
| A．have reminded | B．are reminded |
| C．were reminding | D．had been reminded |
—Our holiday cost a lot of money.
—Did it? Well, that doesn't matter____________ you enjoyed yourselves.
| A．unless | B．in case | C．as far as | D．as long as |
— Show me your permit, please.
—Oh, it's not in my pocket. It_______________.
| A．might fall out | B．could fall out |
| C．should have fallen out | D．must have fallen out |
I tried hard to get some information about the new technology out of his mouth, but he remained____________.
| A．quiet | B．secret | C．silent | D．calm |
The queen will visit the town in May, she will open the new hospital.
| A．when | B．then | C．while | D．but |