----Julie, _______ have you been learning English?
¬---- Since six years ago.
| A．when | B．how far | C．how soon | D．how long |
Do you know where _________ some maps?
A、can I buy B、can buy C、I can buy
He doesn’t know _________.
A、to do what B、how to do C、what to do
He also _________ some signs asking for old bikes.
A、put down B、put up C、put off
Study hard, _____you will get better grade.
A、or B、and C、because
He pretends _______this thing.
A、not know B、not knowing C、not to know