The meeting was expected to start at 9 o'clock but the manager didn't turn up ______ twenty minutes later.
| A．before | B．until | C．after | D．since |
The food ran out early, but______ the party was a success according to the guests present that evening.
| A．therefore | B．meanwhile | C．otherwise | D．however |
______ when we passed by its nest.
| A．Up into the blue sky did the bird fly |
| B．Up into the blue sky flew the bird |
| C．Up into the blue sky the bird flew |
| D．Flew up into the blue sky the bird |
Henry made a list of all the possible solutions,______ helpful in handling the present situation, though.
| A．none of them | B．none of which |
| C．all of which | D．all of them |
“President Xi Jinping’s report,” a smile on his face, he continued, “______ to several hot topics, discusses how to increase peasants’ income.”
| A．referring | B．refers |
| C．having referred | D．referred |
One of the requirements for a fire is that the material _________ to its burning temperature.
| A．is heated | B．be heated |
| C．would be heated | D．shall be heated |