They searched in the forest for a whole day, to find the three children who had lost their way the day before.
| A．to hope |
| B．hoping |
| C．hoped |
| D．having hoped |
—Could I use your bike?
—Yes, surely you ______.
| A．might | B．will | C．can | D．should |
He couldn’t ______ the fact that the money was found in his house.
| A．answer for | B．leave for | C．account for | D．care for |
Many scientists believe that the universe began with an enormous explosion called the “Big Bang”, ______ happened about 13.7 billion years ago.
| A．that | B．which | C．when | D．what |
—Don’t forget to visit me when you come to Beijing.
—______.
| A．I don’t | B．I won’t | C．I can’t | D．I haven’t |
—Your mother becomes more and more forgetful.
—Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coat pocket the next day.
| A．turned out | B．turned on | C．turned over | D．turned up |