I have seldom seen my mother（）pleased with my progress as she is now
| A． |
so |
B． |
very |
C． |
too |
D． |
rather |
Polly observed that she ______ by a tall man in a dark coat when she ______ the faces around her on the train.
| A．was watched; stared at | B．was being watched; glanced at |
| C．was being watched; glared at | D．was watched; looked at |
______ is amazing to us is ______some plants can sense the soft touches of the insects on the leaves.
| A．That; that | B．What; what | C．What; that | D．That; what |
______ wants to enter the company must show his ID at the entrance.
| A．Anyone | B．Whoever | C．Who | D．The one |
I’ve heard a whisper ______ David and Alice are going to get married.
| A．what | B．which | C．who | D．that |
Is ______ true that the famous scientist will give us a lecture on how to predict earthquakes next week?
| A．that | B．it | C．this | D．he |