Smiling can make people happy, lively and warm.
| A．to feel | B．feels | C．feel | D．felt |
Millie is too young to ________ herself.
| A．not look after | B．looks after |
| C．looking after | D．look after |
It’s more than 8 years since I a teacher.
| A．become | B．have become |
| C．became | D．becomes |
Tom will be old enough ________ to school this year.
| A．to go | B．going | C．goes | D．go |
– Where is your mother? -- She ________ to shanghai. She has ever ________ there twice.
| A．has gone; gone | B．has been; been |
| C．has gone; been | D．has been; gone |
________ have you been in this city? -- Ever since 2000.
| A．When | B．How long |
| C．How soon | D．How often |