The other day, my brother drove his car down the street at _____ I thought was a dangerous speed.
| A．as | B．which | C．what | D．that |
She’s so ______ that no one can please her.
| A．particular | B．simple | C．normal | D．adventurous |
___________ ill worried my parents greatly.
| A．I fell | B．Me falling | C．My falling | D．I falling |
E-mail, as well as telephones, ______ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |
To improve the quality of our products, we asked for advice had used the products.
| A．which | B．who | C．whichever | D．whoever |
His first book next month is based on a true story.
| A．published | B．to be published | C．to publish | D．being published |