The _____ population has caused many serious problems.
| A．increase | B．increased |
| C．increasing | D．increases |
It’s such along way. Please _____________ a bus to get there.
| A．do | B．make |
| C．carry | D．take |
How did you______the weekend?
| A．spend | B．take | C．do | D．spent |
He _____________from Canada.
| A．come | B．is |
| C．are | D．be |
It _____________ me twenty minutes to come to school by bike.
| A．take | B．spend |
| C．cost | D．takes |
Neither you nor he _____________ worried.
| A．are | B．is |
| C．am | D．has |