I received his mother’s telephone call at eleven.＿＿that he was badly hurt in an accident yesterday.
| A．Then did I know | B．Only then I knew | C．Only then did I know | D．Only then knew I |
—I really don’t know whether I can be admitted to dream university in a month.
—________. Everything is possible.
| A．Take it easy | B．Just ignore it | C．Never give up | D．Take your time |
—Don’ t you agree with what he said at the meeting?
—Yes, ________! It can’t be better.
| A．approximately | B．incredibly | C．probably | D．absolutely |
A proper approach to ________ your learning efficiency is of great significance to every student.
| A．improving | B．improve | C．be improving | D．having improved |
—Why are you looking so worried?
—I sent an email to my son in America last week, but no reply ________.
| A．was received | B．had received | C．has received | D．has been received |
When the environmentally friendly cars came onto the market, many people were eager to buy them ________ the price.
| A．wherever | B．however | C．whichever | D．whatever |