It is not enough only________ the rules of grammar if you want to learn English well.
| A．keeping in the mind |
| B．to keep in mind |
| C．to keep in your mind |
| D．keeping in your mind |
—Where did you get this book?
—I picked it up from a second-hand bookshop if you ______ know.
| A．must | B．will | C．can | D．shall |
She was clearly a customer at Scott' s, as she told the waiter that she would stick to her favorite．
| A．casual | B．common | C．regular | D．ordinary |
—Was it there _______ you were away to see your friend off?
—I’m not sure . But when I got back, it was gone.
| A．that | B．which | C．where | D．while |
The Charles Dickens Museum in Doughty Street is the only one of his Londonhomes to survive，______he wrote Oliver Twist.
| A．where | B．that | C．which | D．What |
Since I don’t like surfing the Internet, shall I go to the library instead ______ the information we need?
| A．of to get | B．of getting | C．to get | D．getting |