He didn’t attend the meeting last night, _________ he doesn’t know our plan for the picnic.
| A．that’s why | B．that’s because | C．which is why | D．which is because |
Advertising can influence consumers' moods，_______________ in turn，can influence consumers’reactions to products．
| A．that | B．which | C．where | D．when |
The scientist spent years alone in the forest，_____________ by eating wild fruit and small animals．
| A．surviving | B．survived |
| C．to survive | D．having survived |
—Will you take part in the speech contest？
—____________ I have long been expecting such an activity．
| A．Not at a11． | B．It’s my pleasure． |
| C．But why? | D．That’s for sure． |
The door opens and there ____.
| A．enter the teacher of English and head teacher |
| B．enters the teacher of English and head teacher |
| C．does the teacher of English and head teacher |
| D．the teacher of English and head teacher enter |
It has been accepted that all the students ____ put on masks before going to school in case they are infected with flu virus.
| A．shall | B．will |
| C．need | D．may |