I really don’t know ____ .
| A．to swim | B．how to swim | C．to swim how | D．how swim |
Various efforts over the centuries _________ to predict earthquakes to reduce the damage.
| A．are being made | B．have been made | C．were made | D．were being made |
He's one of those people with a very _______ imagination --- every time he hears a noise he's convinced it's someone breaking in.
| A．adequate | B．relevant | C．abundant | D．vivid |
My friend Miriam felt it was out of _____ question for her to visit China without going to see the terracotta warriors, so I helped her arrange _____ tour to Xi’an.
| A．/ ; the | B．the; a | C．/; a | D．the; / |
Hawaii, however, provides an ideal location to _____ the technology at a low price.
| A．make out | B．give out | C．set out | D．test out |
It is recommended that you ________ your accommodation in advance in tourist season, as you may find all the best hotels are not accessible.
| A．book | B．must book | C．will book | D．shall book |