I really appreciate ________ to relax with you on this nice island.
| A．to have had time | B．having time | C．to have time | D．to having time |
Visitors to the National Museum can avoid long lines at the ticket booths by purchasing tickets ____.
| A．in advance | B．in detail | C．out of order | D．with caution |
She told me that she would not go with us if it ____ the next day.
| A．was raining | B．rains | C．rained | D．had rained |
I know one of the things I was unsure about was _____ hard it would be to climb this mountain.
| A．what | B．that | C．however | D．how |
Some researchers are finding that daydreaming may be important to ______ mental health and it is ______ good means of relaxation.
| A．the; 不填 | B．不填 ; the | C．不填; a | D．不填; 不填 |
------Have you packed for your adventure holiday?
------Oh, almost, but I still need a flashlight _____I will be able to see in the dark.
| A．because | B．so that | C．even if | D．as |